Publications

 Simon, T. A., L. Dong, S. Suissa, K. Michaud, S. Pedro, M. Hochberg, M. Boers, et al. "Abatacept and Non-Melanoma Skin Cancer in Patients with Rheumatoid Arthritis: A Comprehensive Evaluation of Randomised Controlled Trials and Observational Studies." Ann Rheum Dis 83, no. 2 (Jan 11 2024): 177-83. https://doi.org/10.1136/ard-2023-224356.

Simon, T. A., S. Suissa, M. Boers, M. C. Hochberg, M. L. Skovron, J. Askling, K. Michaud, et al. "Malignancy Outcomes in Patients with Rheumatoid Arthritis Treated with Abatacept and Other Disease-Modifying Antirheumatic Drugs: Results from a 10-Year International Post-Marketing Study." Semin Arthritis Rheum 64 (Feb 2024): 152240. https://doi.org/10.1016/j.semarthrit.2023.152240.

Waldenlind, K., B. Delcoigne, S. Saevarsdottir, and J. Askling. "Disease-Modifying Antirheumatic Drugs and Risk of Thyroxine-Treated Autoimmune Thyroid Disease in Patients with Rheumatoid Arthritis." J Intern Med 295, no. 3 (Mar 2024): 313-21. https://doi.org/10.1111/joim.13743.

Yazdany, J., A. Ware, Z. S. Wallace, S. Bhana, R. Grainger, E. Hachulla, C. Richez, et al. "Impact of Risk Factors on Covid-19 Outcomes in Unvaccinated People with Rheumatic Diseases: A Comparative Analysis of Pandemic Epochs Using the Covid-19 Global Rheumatology Alliance Registry." Arthritis Care Res (Hoboken) 76, no. 2 (Feb 2024): 274-87. https://doi.org/10.1002/acr.25220.

Alfredsson, L., L. Klareskog, and A. K. Hedstrom. "Disease Activity and Health-Related Quality of Life among Patients with Rheumatoid Arthritis with Different Alcohol Consumption Habits." Arthritis Rheumatol 75, no. 6 (Jun 2023): 872-78. https://doi.org/10.1002/art.42442.

Barbulescu, A., A. Sjolander, B. Delcoigne, J. Askling, and T. Frisell. "Glucocorticoid Exposure and the Risk of Serious Infections in Rheumatoid Arthritis: A Marginal Structural Model Application." Rheumatology (Oxford) 62, no. 10 (Oct 3 2023): 3391-99. https://doi.org/10.1093/rheumatology/kead083.

Bengtsson, K., J. Askling, M. Lorentzon, B. Rosengren, A. Deminger, E. Klingberg, L. Jacobsson, and H. Forsblad-d'Elia. "Occurrence and Relative Risks for Non-Vertebral Fractures in Patients with Ankylosing Spondylitis Compared with the General Population: A Register-Based Study from Sweden." RMD Open 9, no. 1 (Feb 2023). https://doi.org/10.1136/rmdopen-2022-002753.

Bower, H., T. Frisell, D. di Giuseppe, B. Delcoigne, and J. Askling. "Comparative Cardiovascular Safety with Janus Kinase Inhibitors and Biological Disease-Modifying Antirheumatic Drugs as Used in Clinical Practice: An Observational Cohort Study from Sweden in Patients with Rheumatoid Arthritis." RMD Open 9, no. 4 (Nov 23 2023). https://doi.org/10.1136/rmdopen-2023-003630.

Bower, H., T. Frisell, D. di Giuseppe, B. Delcoigne, U. Lindstrom, C. Turesson, K. Chatzidionysiou, et al. "Are Jakis More Effective among Elderly Patients with Ra, Smokers and Those with Higher Cardiovascular Risk? A Comparative Effectiveness Study of B/Tsdmards in Sweden." RMD Open 9, no. 4 (Dec 26 2023). https://doi.org/10.1136/rmdopen-2023-003648.

Delcoigne, B., T. I. Kopp, E. V. Arkema, K. Hellgren, S. A. Provan, H. Relas, K. Aaltonen, et al. "Exposure to Specific Tumour Necrosis Factor Inhibitors and Risk of Demyelinating and Inflammatory Neuropathy in Cohorts of Patients with Inflammatory Arthritis: A Collaborative Observational Study across Five Nordic Rheumatology Registers." RMD Open 9, no. 1 (Feb 2023). https://doi.org/10.1136/rmdopen-2022-002924.

Delcoigne, B., S. A. Provan, E. K. Kristianslund, J. Askling, and L. Ljung. "How Does Current Disease Activity in Rheumatoid Arthritis Affect the Short-Term Risk of Acute Coronary Syndrome? A Clinical Register Based Study from Sweden and Norway." Eur J Intern Med  (Jun 22 2023). https://doi.org/10.1016/j.ejim.2023.06.013.

Exarchou, S., D. Di Giuseppe, E. Klingberg, V. Sigurdardottir, S. Wedren, U. Lindstrom, C. Turesson, et al. "Mortality in Patients with Psoriatic Arthritis in Sweden: A Nationwide, Population-Based Cohort Study." Ann Rheum Dis  (Dec 1 2023). https://doi.org/10.1136/ard-2023-224965.

Exarchou, S., J. K. Wallman, D. Di Giuseppe, E. Klingberg, V. Sigurdardottir, S. Wedren, U. Lindstrom, et al. "The National Prevalence of Clinically Diagnosed Psoriatic Arthritis in Sweden in 2017." J Rheumatol 50, no. 6 (Jun 2023): 781-88. https://doi.org/10.3899/jrheum.221139.

Frisell, T., H. Bower, M. Morin, E. Baecklund, D. Di Giuseppe, B. Delcoigne, N. Feltelius, et al. "Safety of Biological and Targeted Synthetic Disease-Modifying Antirheumatic Drugs for Rheumatoid Arthritis as Used in Clinical Practice: Results from the Artis Programme." Ann Rheum Dis 82, no. 5 (May 2023): 601-10. https://doi.org/10.1136/ard-2022-223762.

Glintborg, B., D. Di Giuseppe, J. K. Wallman, D. C. Nordstrom, B. Gudbjornsson, M. L. Hetland, J. Askling, et al. "Uptake and Effectiveness of Newer Biologic and Targeted Synthetic Disease-Modifying Antirheumatic Drugs in Psoriatic Arthritis: Results from Five Nordic Biologics Registries." Ann Rheum Dis 82, no. 6 (Jun 2023): 820-28. https://doi.org/10.1136/ard-2022-223650.

Glintborg, B., D. Di Giuseppe, J. K. Wallman, S. A. Provan, D. Nordstrom, A. M. Hokkanen, J. Osterlund, et al. "Is the Risk of Infection Higher During Treatment with Secukinumab Than with Tnf Inhibitors? An Observational Study from the Nordic Countries." Rheumatology (Oxford) 62, no. 2 (Feb 1 2023): 647-58. https://doi.org/10.1093/rheumatology/keac358.

Hellamand, P., M. G. H. van de Sande, L. M. Ornbjerg, T. Klausch, K. K. Eklund, H. Relas, M. J. Santos, et al. "Sex Differences in the Effectiveness of First-Line Tumor Necrosis Factor Inhibitors in Psoriatic Arthritis; Results from the Eurospa Research Collaboration Network." Arthritis Rheumatol  (Nov 16 2023). https://doi.org/10.1002/art.42758.

Huss, V., H. Bower, K. Hellgren, T. Frisell, J. Askling, Artis group Behalf of the, and Artis group behalf of the. "Cancer Risks with Jaki and Biological Disease-Modifying Antirheumatic Drugs in Patients with Rheumatoid Arthritis or Psoriatic Arthritis: A National Real-World Cohort Study." Ann Rheum Dis 82, no. 7 (Jul 2023): 911-19. https://doi.org/10.1136/ard-2022-223636.

Karlsson, M. L., Elkan, A. C., & Hafstrom, I. (2019). ”Widespread pain and pain intensity in patients with early rheumatoid arthritis. A cross-sectional comparison between smokers and non-smokers.” Nurs Open, 6(3), 942-947. https://doi.org/10.1002/nop2.284

Linde, L., L. M. Ornbjerg, C. H. Brahe, J. K. Wallman, D. Di Giuseppe, J. Zavada, I. Castrejon, et al. "Second and Third Tnf Inhibitors in European Patients with Axial Spondyloarthritis: Effectiveness and Impact of the Reason for Switching." Rheumatology (Oxford)  (Sep 20 2023). https://doi.org/10.1093/rheumatology/kead494.

Linde, L., L. M. Ornbjerg, S. Georgiadis, S. H. Rasmussen, U. Lindstrom, J. Askling, B. Michelsen, et al. "Predictors of Dapsa28 Remission in Patients with Psoriatic Arthritis Initiating a First Tnf-Inhibitor: Results from 13 European Registries." Rheumatology (Oxford)  (Jun 14 2023). https://doi.org/10.1093/rheumatology/kead284.

Linde, L., L. M. Ornbjerg, S. H. Rasmussen, T. J. Love, A. G. Loft, J. Zavada, J. Vencovsky, et al. "Commonalities and Differences in Set-up and Data Collection across European Spondyloarthritis Registries - Results from the Eurospa Collaboration." Arthritis Res Ther 25, no. 1 (Oct 19 2023): 205. https://doi.org/10.1186/s13075-023-03184-7.

Lindqvist, J., J. Askling, and J. Lampa. "Register-Based Observational Study of Associations between Inflammatory Remission, Formal Treatment Targets and the Use of Disease-Modifying Antirheumatic Drugs among Patients with Early Rheumatoid Arthritis." RMD Open 9, no. 4 (Nov 2023). https://doi.org/10.1136/rmdopen-2023-003111.

Lindstrom, U., D. di Giuseppe, S. Exarchou, G. M. Alenius, T. Olofsson, E. Klingberg, L. Jacobsson, J. Askling, and J. K. Wallman. "Methotrexate Treatment in Early Psoriatic Arthritis in Comparison to Rheumatoid Arthritis: An Observational Nationwide Study." RMD Open 9, no. 2 (May 2023). https://doi.org/10.1136/rmdopen-2022-002883.

Michelsen, B., M. Ostergaard, M. J. Nissen, A. Ciurea, B. Moller, L. M. Ornbjerg, J. Zavada, et al. "Differences and Similarities between the Eular/Asas-Eular and National Recommendations for Treatment of Patients with Psoriatic Arthritis and Axial Spondyloarthritis across Europe." Lancet Reg Health Eur 33 (Oct 2023): 100706. https://doi.org/10.1016/j.lanepe.2023.100706.

Molander, V., H. Bower, and J. Askling. "Validation and Characterization of Venous Thromboembolism Diagnoses in the Swedish National Patient Register among Patients with Rheumatoid Arthritis." Scand J Rheumatol 52, no. 2 (Mar 2023): 111-17. https://doi.org/10.1080/03009742.2021.2001907.

Molander, V., H. Bower, T. Frisell, B. Delcoigne, D. Di Giuseppe, J. Askling, and Artis study group. "Venous Thromboembolism with Jak Inhibitors and Other Immune-Modulatory Drugs: A Swedish Comparative Safety Study among Patients with Rheumatoid Arthritis." Ann Rheum Dis 82, no. 2 (Feb 2023): 189-97. https://doi.org/10.1136/ard-2022-223050.

Oberg Sysojev, A., S. Saevarsdottir, L. M. Diaz-Gallo, G. N. Silberberg, L. Alfredsson, L. Klareskog, E. Baecklund, et al. "Genome-Wide Investigation of Persistence to Treatment with Methotrexate in Early Rheumatoid Arthritis." Rheumatology (Oxford)  (Jun 16 2023). https://doi.org/10.1093/rheumatology/kead301.

Ornbjerg, L. M., K. Rugbjerg, S. Georgiadis, S. H. Rasmussen, U. Lindstrom, K. Pavelka, N. Yilmaz, et al. "One-Third of European Patients with Axial Spondyloarthritis Reach Pain Remission with Routine Care Tumor Necrosis Factor Inhibitor Treatment." J Rheumatol 50, no. 8 (Aug 2023): 1009-19. https://doi.org/10.3899/jrheum.220459.

Pertsinidou, E., S. Saevarsdottir, V. A. Manivel, L. Klareskog, L. Alfredsson, L. Mathsson-Alm, M. Hansson, et al. "In Early Rheumatoid Arthritis, Anticitrullinated Peptide Antibodies Associate with Low Number of Affected Joints and Rheumatoid Factor Associates with Systemic Inflammation." Ann Rheum Dis  (Nov 27 2023). https://doi.org/10.1136/ard-2023-224728.

Salinas, C. A., A. Louder, J. Polinski, T. C. Zhang, H. Bower, S. Phillips, Y. Song, et al. "Evaluation of Vte, Mace, and Serious Infections among Patients with Ra Treated with Baricitinib Compared to Tnfi: A Multi-Database Study of Patients in Routine Care Using Disease Registries and Claims Databases." Rheumatol Ther 10, no. 1 (Feb 2023): 201-23. https://doi.org/10.1007/s40744-022-00505-1.

Tidblad, L., H. Westerlind, B. Delcoigne, J. Askling, and S. Saevarsdottir. "Comorbidities and Chance of Remission in Patients with Early Rheumatoid Arthritis Receiving Methotrexate as First-Line Therapy: A Swedish Observational Nationwide Study." RMD Open 9, no. 4 (Dec 20 2023). https://doi.org/10.1136/rmdopen-2023-003714.

Westerlind, H., B. Glintborg, H. B. Hammer, S. Saevarsdottir, N. S. Krogh, M. L. Hetland, E. M. Hauge, et al. "Remission, Response, Retention and Persistence to Treatment with Disease-Modifying Agents in Patients with Rheumatoid Arthritis: A Study of Harmonised Swedish, Danish and Norwegian Cohorts." RMD Open 9, no. 3 (Sep 2023). https://doi.org/10.1136/rmdopen-2023-003027.

Westerlind, H., A. Kastbom, and J. Askling. "Comment On: The Association between Autoantibodies and Risk for Venous Thromboembolic Events among Patients with Rheumatoid Arthritis: Reply." Rheumatology (Oxford) 62, no. 6 (Jun 1 2023): e204. https://doi.org/10.1093/rheumatology/keac649.

Barbulescu, A., J. Askling, K. Chatzidionysiou, H. Forsblad-d'Elia, A. Kastbom, U. Lindstrom, C. Turesson, and T. Frisell. "Effectiveness of Baricitinib and Tofacitinib Compared with Bdmards in Ra: Results from a Cohort Study Using Nationwide Swedish Register Data." Rheumatology (Oxford) 61, no. 10 (Oct 6 2022): 3952-62. https://dx.doi.org/10.1093/rheumatology/keac068.

Barbulescu, A., J. Askling, S. Saevarsdottir, S. C. Kim, and T. Frisell. "Combined Conventional Synthetic Disease Modifying Therapy Vs. Infliximab for Rheumatoid Arthritis: Emulating a Randomized Trial in Observational Data." Clin Pharmacol Ther 112, no. 4 (Oct 2022): 836-45. https://dx.doi.org/10.1002/cpt.2673.

Boman, A., H. Kokkonen, E. Berglin, G. M. Alenius, and S. Rantapaa-Dahlqvist. "Hormonal and Reproductive Factors in Relation to Cardiovascular Events in Women with Early Rheumatoid Arthritis." J Clin Med 12, no. 1 (Dec 27 2022). https://dx.doi.org/10.3390/jcm12010208.

Bower, H., T. Frisell, D. Di Giuseppe, B. Delcoigne, and J. Askling. "Influenza Outcomes in Patients with Inflammatory Joint Diseases and Dmards: How Do They Compare to Those of Covid-19?", Ann Rheum Dis 81, no. 3 (Mar 2022): 433-39. https://dx.doi.org/10.1136/annrheumdis-2021-221461.

Brink, M., L. Ljung, M. Hansson, J. Ronnelid, R. Holmdahl, K. Skriner, G. Serre, L. Klareskog, and S. Rantapaa-Dahlqvist. "Anti-Citrullinated Protein Antibody Specificities and Pulmonary Fibrosis in Relation to Genetic Loci in Early Rheumatoid Arthritis." Rheumatology (Oxford) 61, no. 12 (Nov 28 2022): 4985-90. https://dx.doi.org/10.1093/rheumatology/keac280.

Chatzidionysiou, K., D. di Giuseppe, J. Soderling, A. Catrina, and J. Askling. "Risk of Lung Cancer in Rheumatoid Arthritis and in Relation to Autoantibody Positivity and Smoking." RMD Open 8, no. 2 (Oct 2022). https://doi.org/10.1136/rmdopen-2022-002465.

Christiansen, S. N., L. M. Ornbjerg, S. H. Rasmussen, A. G. Loft, J. Askling, F. Iannone, J. Zavada, B. Michelsen, M. Nissen, F. Onen, M. J. Santos, M. Pombo-Suarez, H. Relas, G. J. Macfarlane, M. Tomsic, C. Codreanu, B. Gudbjornsson, I. Van der Horst-Bruinsma, D. Di Giuseppe, B. Glintborg, E. Gremese, K. Pavelka, E. K. Kristianslund, A. Ciurea, N. Akkoc, A. Barcelos, C. Sanchez-Piedra, R. Peltomaa, G. T. Jones, Z. Rotar, R. Ionescu, G. Grondal, M. G. H. Van de Sande, K. Laas, M. Ostergaard, and M. L. Hetland. "European Bio-Naive Spondyloarthritis Patients Initiating Tnf Inhibitor: Time Trends in Baseline Characteristics, Treatment Retention and Response." Rheumatology (Oxford) 61, no. 9 (Aug 30 2022): 3799-807. https://dx.doi.org/10.1093/rheumatology/keab945.

Cordtz, R. L., J. Askling, B. Delcoigne, K. E. Smedby, E. Baecklund, C. Ballegaard, P. Isomaki, K. Aaltonen, B. Gudbjornsson, T. J. Love, S. A. Provan, B. Michelsen, J. Sexton, L. Dreyer, and K. Hellgren. "Haematological Malignancies in Patients with Psoriatic Arthritis Overall and Treated with Tnf Inhibitors: A Nordic Cohort Study." RMD Open 8, no. 2 (Dec 2022). https://dx.doi.org/10.1136/rmdopen-2022-002776.

Delcoigne, B., L. Ljung, S. A. Provan, B. Glintborg, M. L. Hetland, K. L. Gron, R. Peltomaa, H. Relas, C. Turesson, B. Gudbjornsson, B. Michelsen, and J. Askling. "Short-Term, Intermediate-Term and Long-Term Risks of Acute Coronary Syndrome in Cohorts of Patients with Ra Starting Biologic Dmards: Results from Four Nordic Countries." Ann Rheum Dis 81, no. 6 (Jun 2022): 789-97. https://dx.doi.org/10.1136/annrheumdis-2021-221996.

Delcoigne, B., S. A. Provan, H. B. Hammer, D. Di Giuseppe, T. Frisell, B. Glintborg, G. Grondal, B. Gudbjornsson, M. L. Hetland, B. Michelsen, D. Nordstrom, H. Relas, and J. Askling. "Do Patient-Reported Measures of Disease Activity in Rheumatoid Arthritis Vary between Countries? Results from a Nordic Collaboration." Rheumatology (Oxford) 61, no. 11 (Nov 2 2022): 4286-96. https://dx.doi.org/10.1093/rheumatology/keac081.

Di Giuseppe, D., U. Lindstrom, K. Aaltonen, H. Relas, S. Provan, B. Gudbjornsson, M. L. Hetland, J. Askling, M. Kauppi, A. J. Geirsson, K. Chatzidionysiou, T. S. Jorgensen, L. Dreyer, B. Michelsen, L. Jacobsson, and B. Glintborg. "The Occurrence of Multiple Treatment Switches in Axial Spondyloarthritis. Results from Five Nordic Rheumatology Registries." Rheumatology (Oxford) 61, no. 9 (Aug 30 2022): 3647-56. https://dx.doi.org/10.1093/rheumatology/keab946.

Di Giuseppe, D., U. Lindstrom, H. Bower, B. Delcoigne, T. Frisell, K. Chatzidionysiou, C. Sjowall, E. Lindqvist, and J. Askling. "Comparison of Treatment Retention of Originator Vs Biosimilar Products in Clinical Rheumatology Practice in Sweden." Rheumatology (Oxford) 61, no. 9 (Aug 30 2022): 3596-605. https://dx.doi.org/10.1093/rheumatology/keab933.

Glintborg, B., U. Lindstrom, D. D. Giuseppe, S. A. Provan, B. Gudbjornsson, M. L. Hetland, B. Michelsen, J. K. Wallman, K. Aaltonen, A. M. Hokkanen, D. Nordstrom, T. S. Jorgensen, R. L. Hansen, A. J. Geirsson, K. L. Gron, N. S. Krogh, J. Askling, L. E. Kristensen, L. T. H. Jacobsson, Anti-Rheumatic Therapy in Sweden Swedish Rheumatology Quality Center for Rheumatology Research Finnish Register of Biological Treatment Danish Rheumatology Database, and registries Norwegian Antirheumatic Drug Register. "One-Year Treatment Outcomes of Secukinumab Versus Tumor Necrosis Factor Inhibitors in Spondyloarthritis: Results from Five Nordic Biologic Registries Including More Than 10,000 Treatment Courses." Arthritis Care Res (Hoboken) 74, no. 5 (May 2022): 748-58. https://dx.doi.org/10.1002/acr.24523.

Hedenstierna, L., A. K. Hedstrom, L. Klareskog, D. Di Giuseppe, L. Alfredsson, J. Askling, S. Ernestam, S. Saevarsdottir, and L. Ljung. "Neither Low Social Support nor Low Decision Latitude at Work Is Associated with Disease Remission among Patients with Rheumatoid Arthritis: Results from the Swedish Eira Study." Arthritis Res Ther 24, no. 1 (Aug 23 2022): 203. https://dx.doi.org/10.1186/s13075-022-02892-w.

Heijke, R., M. Bjork, I. Thyberg, A. Kastbom, L. McDonald, and C. Sjowall. "Comparing Longitudinal Patient-Reported Outcome Measures between Swedish Patients with Recent-Onset Systemic Lupus Erythematosus and Early Rheumatoid Arthritis." Clin Rheumatol 41, no. 5 (May 2022): 1561-68. https://dx.doi.org/10.1007/s10067-021-05982-3.

Hellgren, K., A. E. Secher, B. Glintborg, A. L. Rom, B. Gudbjornsson, B. Michelsen, F. Granath, and M. L. Hetland. "Pregnancy Outcomes in Relation to Disease Activity and Anti-Rheumatic Treatment Strategies in Women with Rheumatoid Arthritis: A Matched Cohort Study from Sweden and Denmark." Rheumatology (Oxford) 61, no. 9 (Aug 30 2022): 3711-22. https://dx.doi.org/10.1093/rheumatology/keab894.

Huss, V., H. Bower, H. Wadstrom, T. Frisell, J. Askling, and Artis group. "Short- and Longer-Term Cancer Risks with Biologic and Targeted Synthetic Disease-Modifying Antirheumatic Drugs as Used against Rheumatoid Arthritis in Clinical Practice." Rheumatology (Oxford) 61, no. 5 (May 5 2022): 1810-18. https://dx.doi.org/10.1093/rheumatology/keab570.

Izadi, Z., M. A. Gianfrancesco, G. Schmajuk, L. Jacobsohn, P. Katz, S. Rush, C. Ja, T. Taylor, K. Shidara, M. I. Danila, K. D. Wysham, A. Strangfeld, E. F. Mateus, K. L. Hyrich, L. Gossec, L. Carmona, S. Lawson-Tovey, L. Kearsley-Fleet, M. Schaefer, S. Al-Emadi, J. A. Sparks, T. Y. Hsu, N. J. Patel, L. Wise, E. Gilbert, A. Duarte-Garcia, M. O. Valenzuela-Almada, M. F. Ugarte-Gil, L. Ljung, C. A. Scire, G. Carrara, E. Hachulla, C. Richez, P. Cacoub, T. Thomas, M. J. Santos, M. Bernardes, R. Hasseli, A. Regierer, H. Schulze-Koops, U. Muller-Ladner, G. Pons-Estel, R. Tanten, R. E. Nieto, C. N. Pisoni, Y. S. Tissera, R. Xavier, C. D. Lopes Marques, G. C. S. Pileggi, P. C. Robinson, P. M. Machado, E. Sirotich, J. W. Liew, J. S. Hausmann, P. Sufka, R. Grainger, S. Bhana, M. Gore-Massy, Z. S. Wallace, J. Yazdany, and Covid- Global Rheumatology Alliance Registry. "Environmental and Societal Factors Associated with Covid-19-Related Death in People with Rheumatic Disease: An Observational Study." Lancet Rheumatol 4, no. 9 (Sep 2022): e603-e13. https://dx.doi.org/10.1016/S2665-9913(22)00192-8.

Jonsson, E., L. Ljung, E. Norrman, E. Freyhult, L. Arlestig, J. Dahlqvist, and S. Rantapaa-Dahlqvist. "Pulmonary Fibrosis in Relation to Genetic Loci in an Inception Cohort of Patients with Early Rheumatoid Arthritis from Northern Sweden." Rheumatology (Oxford) 61, no. 3 (Mar 2 2022): 943-52. https://dx.doi.org/10.1093/rheumatology/keab441.

Kokkonen, H., L. Johansson, H. Stenlund, and S. Rantapaa-Dahlqvist. "Cardiovascular Risk Factors before Onset of Rheumatoid Arthritis Are Associated with Cardiovascular Events after Disease Onset: A Case-Control Study." J Clin Med 11, no. 21 (Nov 3 2022). https://dx.doi.org/10.3390/jcm11216535.

Lindqvist, E., T. Olofsson, A. Joud, M. Geijer, J. K. Wallman, and E. Mogard. "How Good Is the Agreement between Clinical Diagnoses and Classification Criteria Fulfilment in Axial Spondyloarthritis? Results from the Spartakus Cohort." Scand J Rheumatol  (Jun 13 2022): 1-10. https://dx.doi.org/10.1080/03009742.2022.2064183.

Michelsen, B., S. Georgiadis, D. Di Giuseppe, A. G. Loft, M. J. Nissen, F. Iannone, M. Pombo-Suarez, H. Mann, Z. Rotar, K. K. Eklund, T. K. Kvien, M. J. Santos, B. Gudbjornsson, C. Codreanu, S. Yilmaz, J. K. Wallman, C. H. Brahe, B. Moller, E. G. Favalli, C. Sanchez-Piedra, L. Nekvindova, M. Tomsic, N. Trokovic, E. K. Kristianslund, H. Santos, T. J. Love, R. Ionescu, Y. Pehlivan, G. T. Jones, I. van der Horst-Bruinsma, L. M. Ornbjerg, M. Ostergaard, and M. L. Hetland. "Real-World Six- and Twelve-Month Drug Retention, Remission, and Response Rates of Secukinumab in 2,017 Patients with Psoriatic Arthritis in Thirteen European Countries." Arthritis Care Res (Hoboken) 74, no. 7 (Jul 2022): 1205-18. https://dx.doi.org/10.1002/acr.24560.

Morin, M., K. Hellgren, U. Lindstrom, and T. Frisell. "Is Family History a Predictor of Response to Tumour Necrosis Factor Inhibitors in Spondyloarthritis? A Swedish Nationwide Cohort Study." Scand J Rheumatol 51, no. 1 (Jan 2022): 10-20. https://dx.doi.org/10.1080/03009742.2021.1887928.

Nissen, M., B. Delcoigne, D. Di Giuseppe, L. Jacobsson, M. L. Hetland, A. Ciurea, L. Nekvindova, F. Iannone, N. Akkoc, T. Sokka-Isler, K. M. Fagerli, M. J. Santos, C. Codreanu, M. Pombo-Suarez, Z. Rotar, B. Gudbjornsson, I. van der Horst-Bruinsma, A. G. Loft, B. Moller, H. Mann, F. Conti, G. Yildirim Cetin, H. Relas, B. Michelsen, P. Avila Ribeiro, R. Ionescu, C. Sanchez-Piedra, M. Tomsic, A. J. Geirsson, J. Askling, B. Glintborg, and U. Lindstrom. "The Impact of a Csdmard in Combination with a Tnf Inhibitor on Drug Retention and Clinical Remission in Axial Spondyloarthritis." Rheumatology (Oxford) 61, no. 12 (Nov 28 2022): 4741-51. https://dx.doi.org/10.1093/rheumatology/keac174.

Ornbjerg, L. M., L. Linde, S. Georgiadis, S. H. Rasmussen, U. Lindstrom, J. Askling, B. Michelsen, D. D. Giuseppe, J. K. Wallman, K. Pavelka, J. Zavada, M. J. Nissen, G. T. Jones, H. Relas, L. Pirila, M. Tomsic, Z. Rotar, A. J. Geirsson, B. Gudbjornsson, E. K. Kristianslund, I. van Sder Horst-Bruinsma, A. G. Loft, K. Laas, F. Iannone, A. Corrado, A. Ciurea, M. J. Santos, H. Santos, C. Codreanu, N. Akkoc, O. S. Gunduz, B. Glintborg, M. Ostergaard, and M. L. Hetland. "Predictors of Asdas-Crp Inactive Disease in Axial Spondyloarthritis During Treatment with Tnf-Inhibitors: Data from the Eurospa Collaboration." Semin Arthritis Rheum 56 (Oct 2022): 152081. https://dx.doi.org/10.1016/j.semarthrit.2022.152081.

Pettersson, S., I. Demmelmaier, B. Nordgren, A. B. Dufour, and C. H. Opava. "Identification and Prediction of Fatigue Trajectories in People with Rheumatoid Arthritis." ACR Open Rheumatol 4, no. 2 (Feb 2022): 111-18. https://dx.doi.org/10.1002/acr2.11374.

Saevarsdottir, S., L. Stefansdottir, P. Sulem, G. Thorleifsson, E. Ferkingstad, G. Rutsdottir, B. Glintborg, H. Westerlind, G. Grondal, I. C. Loft, S. B. Sorensen, B. A. Lie, M. Brink, L. Arlestig, A. O. Arnthorsson, E. Baecklund, K. Banasik, S. Bank, L. I. Bjorkman, T. Ellingsen, C. Erikstrup, O. Frei, I. Gjertsson, D. F. Gudbjartsson, S. A. Gudjonsson, G. H. Halldorsson, O. Hendricks, J. Hillert, E. Hogdall, S. Jacobsen, D. V. Jensen, H. Jonsson, A. Kastbom, I. Kockum, S. Kristensen, H. Kristjansdottir, M. H. Larsen, A. Linauskas, E. M. Hauge, A. G. Loft, B. R. Ludviksson, S. H. Lund, T. Markusson, G. Masson, P. Melsted, K. H. S. Moore, H. Munk, K. R. Nielsen, G. L. Norddahl, A. Oddsson, T. A. Olafsdottir, P. I. Olason, T. Olsson, S. R. Ostrowski, K. Horslev-Petersen, S. Rognvaldsson, H. Sanner, G. N. Silberberg, H. Stefansson, E. Sorensen, I. J. Sorensen, C. Turesson, T. Bergman, L. Alfredsson, T. K. Kvien, S. Brunak, K. Steinsson, V. Andersen, O. A. Andreassen, S. Rantapaa-Dahlqvist, M. L. Hetland, L. Klareskog, J. Askling, L. Padyukov, O. B. Pedersen, U. Thorsteinsdottir, I. Jonsdottir, K. Stefansson, Dbds Genomic Consortium Members of the, R. A. Genetics Working Group Danish, and Group Swedish Rheumatology Quality Register Biobank Study. "Multiomics Analysis of Rheumatoid Arthritis Yields Sequence Variants That Have Large Effects on Risk of the Seropositive Subset." Ann Rheum Dis 81, no. 8 (Aug 2022): 1085-95. https://dx.doi.org/10.1136/annrheumdis-2021-221754.

Sysojev, A. O., T. Frisell, B. Delcoigne, S. Saevarsdottir, J. Askling, and H. Westerlind. "Does Persistence to Methotrexate Treatment in Early Rheumatoid Arthritis Have a Familial Component?", Arthritis Res Ther 24, no. 1 (Aug 6 2022): 185. https://dx.doi.org/10.1186/s13075-022-02873-z.

Tidblad, L., H. Westerlind, B. Delcoigne, J. Askling, and S. Saevarsdottir. "Comorbidities and Treatment Patterns in Early Rheumatoid Arthritis: A Nationwide Swedish Study." RMD Open 8, no. 2 (Dec 2022). https://dx.doi.org/10.1136/rmdopen-2022-002700.

Wallman, J. K., G. M. Alenius, E. Klingberg, V. Sigurdardottir, S. Wedren, S. Exarchou, U. Lindstrom, D. Di Giuseppe, J. Askling, and L. Jacobsson. "Validity of Clinical Psoriatic Arthritis Diagnoses Made by Rheumatologists in the Swedish National Patient Register." Scand J Rheumatol  (Jun 6 2022): 1-11. https://dx.doi.org/10.1080/03009742.2022.2066807.

Yeoh, S. A., M. Gianfrancesco, S. Lawson-Tovey, K. L. Hyrich, A. Strangfeld, L. Gossec, L. Carmona, E. F. Mateus, M. Schafer, C. Richez, E. Hachulla, M. Holmqvist, C. A. Scire, H. M. Lorenz, R. E. Voll, R. Hasseli, A. Jayatilleke, T. Y. Hsu, K. M. D'Silva, V. R. Pimentel-Quiroz, M. Vasquez Del Mercado, S. K. Shinjo, Etdr Neto, Lfdr Junior, E. Silva Montandon A. C. de Oliveira, G. J. Pons-Estel, S. Ornella, M. E. D'Angelo Exeni, E. Velozo, P. Jordan, E. Sirotich, J. S. Hausmann, J. W. Liew, L. Jacobsohn, M. Gore-Massy, P. Sufka, R. Grainger, S. Bhana, Z. Wallace, P. C. Robinson, J. Yazdany, P. M. Machado, and Covid- Global Rheumatology Alliance. "Factors Associated with Severe Covid-19 in People with Idiopathic Inflammatory Myopathy: Results from the Covid-19 Global Rheumatology Alliance Physician-Reported Registry." RMD Open 8, no. 2 (Sep 2022). https://dx.doi.org/10.1136/rmdopen-2022-002508.

Bengtsson, K., H. Forsblad-d'Elia, A. Deminger, E. Klingberg, M. Dehlin, S. Exarchou, U. Lindstrom, J. Askling, and L. T. H. Jacobsson. "Incidence of Extra-Articular Manifestations in Ankylosing Spondylitis, Psoriatic Arthritis and Undifferentiated Spondyloarthritis: Results from a National Register-Based Cohort Study." Rheumatology (Oxford) 60, no. 6 (Jun 18 2021): 2725-34. https://dx.doi.org/10.1093/rheumatology/keaa692.

Bergstrom, M., O. Dahlstrom, I. Thyberg, and M. Bjork. "The Role of Support from Significant Others in the Association between Disease-Related Factors and Sickness Absence in Early Rheumatoid Arthritis: A Longitudinal Study." Scand J Rheumatol 50, no. 6 (Nov 2021): 427-34. https://dx.doi.org/10.1080/03009742.2020.1870712.

Bergstrom, M., A. Larsson Ranada, A. Sverker, I. Thyberg, and M. Bjork. "A Dyadic Exploration of Support in Everyday Life of Persons with Ra and Their Significant Others." Scand J Occup Ther  (Nov 30 2021): 1-12. https://dx.doi.org/10.1080/11038128.2021.2007997.

Bower, H., T. Frisell, D. di Giuseppe, B. Delcoigne, G. M. Ahlenius, E. Baecklund, K. Chatzidionysiou, N. Feltelius, H. Forsblad-d'Elia, A. Kastbom, L. Klareskog, E. Lindqvist, U. Lindstrom, C. Turesson, C. Sjowall, J. Askling, and Artis Study Group. "Effects of the Covid-19 Pandemic on Patients with Inflammatory Joint Diseases in Sweden: From Infection Severity to Impact on Care Provision." RMD Open 7, no. 3 (Dec 2021). https://dx.doi.org/10.1136/rmdopen-2021-001987.

Bower, H., T. Frisell, D. Di Giuseppe, B. Delcoigne, G. M. Ahlenius, E. Baecklund, K. Chatzidionysiou, N. Feltelius, H. Forsblad-d'Elia, A. Kastbom, L. Klareskog, E. Lindqvist, U. Lindstrom, C. Turesson, C. Sjowall, J. Askling, and Artis Study Group. "Impact of the Covid-19 Pandemic on Morbidity and Mortality in Patients with Inflammatory Joint Diseases and in the General Population: A Nationwide Swedish Cohort Study." Ann Rheum Dis 80, no. 8 (Aug 2021): 1086-93. https://dx.doi.org/10.1136/annrheumdis-2021-219845.

Chatzidionysiou, K., M. L. Hetland, T. Frisell, D. Di Giuseppe, K. Hellgren, B. Glintborg, D. Nordstrom, R. Peltomaa, K. Aaltonen, N. Trokovic, E. K. Kristianslund, T. K. Kvien, S. A. Provan, B. Gudbjornsson, G. Grondal, L. Dreyer, L. E. Kristensen, T. S. Jorgensen, L. T. H. Jacobsson, and J. Askling. "Effectiveness of a Second Biologic after Failure of a Non-Tumor Necrosis Factor Inhibitor as First Biologic in Rheumatoid Arthritis." J Rheumatol 48, no. 10 (Oct 2021): 1512-18. https://dx.doi.org/10.3899/jrheum.201467.

Courvoisier, D. S., K. Chatzidionysiou, D. Mongin, K. Lauper, X. Mariette, J. Morel, J. E. Gottenberg, S. A. Bergstra, M. P. Suarez, C. Codreanu, T. K. Kvien, M. J. Santos, K. Pavelka, M. L. Hetland, J. Askling, C. Turesson, S. Kubo, Y. Tanaka, F. Iannone, D. Choquette, D. C. Nordstrom, Z. Rotar, G. Lukina, C. Gabay, R. Van Vollenhoven, and A. Finckh. "The Impact of Seropositivity on the Effectiveness of Biologic Anti-Rheumatic Agents: Results from a Collaboration of 16 Registries." Rheumatology (Oxford) 60, no. 2 (Feb 1 2021): 820-28. https://dx.doi.org/10.1093/rheumatology/keaa393.

Geijer, M., G. M. Alenius, L. Andre, T. Husmark, P. T. Larsson, U. Lindqvist, I. Thyberg, and E. Theander. "Health-Related Quality of Life in Early Psoriatic Arthritis Compared with Early Rheumatoid Arthritis and a General Population." Semin Arthritis Rheum 51, no. 1 (Feb 2021): 246-52. https://dx.doi.org/10.1016/j.semarthrit.2020.10.010.

Hellgren, K., C. Ballegaard, B. Delcoigne, R. Cordtz, D. Nordstrom, K. Aaltonen, B. Gudbjornsson, T. J. Love, S. Aarrestad Provan, J. Sexton, K. Zobbe, L. E. Kristensen, J. Askling, and L. Dreyer. "Risk of Solid Cancers Overall and by Subtypes in Patients with Psoriatic Arthritis Treated with Tnf Inhibitors - a Nordic Cohort Study." Rheumatology (Oxford) 60, no. 8 (Aug 2 2021): 3656-68. https://dx.doi.org/10.1093/rheumatology/keaa828. 

Hellgren, K., D. Di Giuseppe, K. E. Smedby, C. Sundstrom, J. Askling, E. Baecklund, and Artis study group. "Lymphoma Risks in Patients with Rheumatoid Arthritis Treated with Biological Drugs-a Swedish Cohort Study of Risks by Time, Drug and Lymphoma Subtype." Rheumatology (Oxford) 60, no. 2 (Feb 1 2021): 809-19. https://dx.doi.org/10.1093/rheumatology/keaa330.

Holmqvist, M., A. Mantel, S. Wallberg-Jonsson, S. James, T. Jernberg, and J. Askling. "Findings on Coronary Angiographies in Patients with Rheumatoid Arthritis and Ischemic Heart Disease: Are They Different from Patients without Rheumatoid Arthritis?", Arthritis Care Res (Hoboken) 73, no. 5 (May 2021): 658-65. https://dx.doi.org/10.1002/acr.24214.

Izadi, Z., E. J. Brenner, S. K. Mahil, N. Dand, Z. Z. N. Yiu, M. Yates, R. C. Ungaro, X. Zhang, M. Agrawal, J. F. Colombel, M. A. Gianfrancesco, K. L. Hyrich, A. Strangfeld, L. Carmona, E. F. Mateus, S. Lawson-Tovey, E. Klingberg, G. Cuomo, M. Caprioli, A. R. Cruz-Machado, A. C. Mazeda Pereira, R. Hasseli, A. Pfeil, H. M. Lorenz, B. F. Hoyer, L. Trupin, S. Rush, P. Katz, G. Schmajuk, L. Jacobsohn, A. M. Seet, S. Al Emadi, L. Wise, E. L. Gilbert, A. Duarte-Garcia, M. O. Valenzuela-Almada, C. A. Isnardi, R. Quintana, E. R. Soriano, T. Y. Hsu, K. M. D'Silva, J. A. Sparks, N. J. Patel, R. M. Xavier, C. D. L. Marques, A. M. Kakehasi, R. M. Flipo, P. Claudepierre, A. Cantagrel, P. Goupille, Z. S. Wallace, S. Bhana, W. Costello, R. Grainger, J. S. Hausmann, J. W. Liew, E. Sirotich, P. Sufka, P. C. Robinson, P. M. Machado, C. E. M. Griffiths, J. N. Barker, C. H. Smith, J. Yazdany, M. D. Kappelman, Therapy Psoriasis Patient Registry for Outcomes, Covid-Infection Epidemiology of, Disease the Secure Epidemiology of Coronavirus Under Research Exclusion for Inflammatory Bowel, Covid-Global Rheumatology Allianc the, Therapy Psoriasis Patient Registry for Outcomes, Covid-Infection Epidemiology of, Disease the Secure Epidemiology of Coronavirus Under Research Exclusion for Inflammatory Bowel, and Covid-Global Rheumatology Alliance the. "Association between Tumor Necrosis Factor Inhibitors and the Risk of Hospitalization or Death among Patients with Immune-Mediated Inflammatory Disease and Covid-19." JAMA Netw Open 4, no. 10 (Oct 1 2021): e2129639. https://dx.doi.org/10.1001/jamanetworkopen.2021.29639.

Kallmark, H., J. T. Einarsson, J. A. Nilsson, T. Olofsson, T. Saxne, P. Geborek, and C. Kapetanovic M. "Sustained Remission in Patients with Rheumatoid Arthritis Receiving Triple Therapy Compared to Biologic Therapy: A Swedish Nationwide Register Study." Arthritis Rheumatol 73, no. 7 (Jul 2021): 1135-44. https://dx.doi.org/10.1002/art.41720.

Leu Agelii, M., M. Andersson, B. L. Jones, C. Sjowall, A. Kastbom, I. Hafstrom, K. Forslind, and I. Gjertsson. "Disease Activity Trajectories in Rheumatoid Arthritis: A Tool for Prediction of Outcome." Scand J Rheumatol 50, no. 1 (Jan 2021): 1-10. https://dx.doi.org/10.1080/03009742.2020.1774646.

Lindstrom, U., K. Bengtsson, T. Olofsson, D. Di Giuseppe, B. Glintborg, H. Forsblad-d'Elia, L. T. H. Jacobsson, and J. Askling. "Anterior Uveitis in Patients with Spondyloarthritis Treated with Secukinumab or Tumour Necrosis Factor Inhibitors in Routine Care: Does the Choice of Biological Therapy Matter?", Ann Rheum Dis 80, no. 11 (Nov 2021): 1445-52. https://dx.doi.org/10.1136/annrheumdis-2021-220420.

Lindstrom, U., D. Di Giuseppe, B. Delcoigne, B. Glintborg, B. Moller, A. Ciurea, M. Pombo-Suarez, C. Sanchez-Piedra, K. Eklund, H. Relas, B. Gudbjornsson, T. J. Love, G. T. Jones, C. Codreanu, R. Ionescu, L. Nekvindova, J. Zavada, N. Atas, S. Yolbas, K. M. Fagerli, B. Michelsen, Z. Rotar, M. Tomsic, F. Iannone, M. J. Santos, P. Avila-Ribeiro, L. M. Ornbjerg, M. Ostergaard, L. T. Jacobsson, J. Askling, and M. J. Nissen. "Effectiveness and Treatment Retention of Tnf Inhibitors When Used as Monotherapy Versus Comedication with Csdmards in 15 332 Patients with Psoriatic Arthritis. Data from the Eurospa Collaboration." Ann Rheum Dis 80, no. 11 (Nov 2021): 1410-18. https://dx.doi.org/10.1136/annrheumdis-2021-220097.

Lindstrom, U., B. Glintborg, D. Di Giuseppe, T. Schjodt Jorgensen, B. Gudbjornsson, K. Lederballe Gron, S. Aarrestad Provan, B. Michelsen, M. Lund Hetland, J. K. Wallman, D. Nordstrom, N. Trokovic, T. J. Love, N. S. Krogh, J. Askling, L. T. H. Jacobsson, and L. E. Kristensen. "Comparison of Treatment Retention and Response to Secukinumab Versus Tumour Necrosis Factor Inhibitors in Psoriatic Arthritis." Rheumatology (Oxford) 60, no. 8 (Aug 2 2021): 3635-45. https://dx.doi.org/10.1093/rheumatology/keaa825.

Lund Hansen, R., T. Schoedt Jorgensen, L. Dreyer, M. L. Hetland, B. Glintborg, J. Askling, D. Di Giuseppe, L. T. H. Jacobsson, J. K. Wallman, D. Nordstrom, K. Aaltonen, E. K. Kristianslund, T. K. Kvien, S. A. Provan, B. Gudbjornsson, T. J. Love, and L. E. Kristensen. "Inflammatory Hallmarks of Lesser Prominence in Psoriatic Arthritis Patients Starting Biologics: A Nordic Population-Based Cohort Study." Rheumatology (Oxford) 60, no. 1 (Jan 5 2021): 140-46. https://dx.doi.org/10.1093/rheumatology/keaa237.

Miller, H., J. K. Wallman, I. F. Petersson, S. Saevarsdottir, J. Soderling, S. Ernestam, J. Askling, R. van Vollenhoven, and M. Neovius. "Mortality over 14 Years in Mtx-Refractory Patients Randomized to a Strategy of Addition of Infliximab or Sulfasalazine and Hydroxychloroquine." Rheumatology (Oxford) 60, no. 5 (May 14 2021): 2217-22. https://dx.doi.org/10.1093/rheumatology/keaa553.

Molander, V., H. Bower, T. Frisell, and J. Askling. "Risk of Venous Thromboembolism in Rheumatoid Arthritis, and Its Association with Disease Activity: A Nationwide Cohort Study from Sweden." Ann Rheum Dis 80, no. 2 (Feb 2021): 169-75. https://dx.doi.org/10.1136/annrheumdis-2020-218419.

Sattui, S. E., R. Conway, M. S. Putman, A. M. Seet, M. A. Gianfrancesco, K. Beins, C. Hill, D. Liew, S. L. Mackie, P. Mehta, L. Neill, G. Gomez, M. I. H. Salinas, F. N. Maldonado, H. A. Mariz, S. A. de Sousa Studart, N. C. Araujo, A. Knight, D. Rozza, L. Quartuccio, M. Samson, S. Bally, A. T. Maria, P. Chazerain, R. Hasseli, U. Muller-Ladner, B. F. Hoyer, R. Voll, R. P. Torres, M. Luis, S. L. E. Ribeirio, S. Al-Emadi, J. A. Sparks, T. Y. Hsu, K. M. D'Silva, N. J. Patel, L. Wise, E. Gilbert, M. V. Almada, A. Duarte-Garcia, M. Ugarte-Gil, L. Jacobsohn, Z. Izadi, A. Strangfeld, E. F. Mateus, K. L. Hyrich, L. Gossec, L. Carmona, S. Lawson-Tovey, L. Kearsley-Fleet, M. Schaefer, E. Sirotich, J. S. Hausmann, P. Sufka, S. Bhana, J. W. Liew, R. Grainger, P. M. Machado, Z. S. Wallace, J. Yazdany, P. C. Robinson, and Alliance Global Rheumatology. "Outcomes of Covid-19 in Patients with Primary Systemic Vasculitis or Polymyalgia Rheumatica from the Covid-19 Global Rheumatology Alliance Physician Registry: A Retrospective Cohort Study." Lancet Rheumatol 3, no. 12 (Dec 2021): e855-e64. https://dx.doi.org/10.1016/S2665-9913(21)00316-7.

Simard, J. F., M. Rossides, I. Gunnarsson, E. Svenungsson, and E. V. Arkema. "Infection Hospitalisation in Systemic Lupus in Sweden." Lupus Sci Med 8, no. 1 (Sep 2021). https://dx.doi.org/10.1136/lupus-2021-000510.

Sparks, J. A., Z. S. Wallace, A. M. Seet, M. A. Gianfrancesco, Z. Izadi, K. L. Hyrich, A. Strangfeld, L. Gossec, L. Carmona, E. F. Mateus, S. Lawson-Tovey, L. Trupin, S. Rush, P. Katz, G. Schmajuk, L. Jacobsohn, L. Wise, E. L. Gilbert, A. Duarte-Garcia, M. O. Valenzuela-Almada, G. J. Pons-Estel, C. A. Isnardi, G. A. Berbotto, T. Y. Hsu, K. M. D'Silva, N. J. Patel, L. Kearsley-Fleet, M. Schafer, S. L. E. Ribeiro, S. Al Emadi, L. Tidblad, C. A. Scire, B. Raffeiner, T. Thomas, R. M. Flipo, J. Avouac, R. Seror, M. Bernardes, M. M. Cunha, R. Hasseli, H. Schulze-Koops, U. Muller-Ladner, C. Specker, V. A. Souza, Lmhd Mota, A. P. M. Gomides, P. Dieude, E. Nikiphorou, V. L. Kronzer, N. Singh, M. F. Ugarte-Gil, B. Wallace, A. Akpabio, R. Thomas, S. Bhana, W. Costello, R. Grainger, J. S. Hausmann, J. W. Liew, E. Sirotich, P. Sufka, P. C. Robinson, P. M. Machado, J. Yazdany, and Covid- Global Rheumatology Alliance. "Associations of Baseline Use of Biologic or Targeted Synthetic Dmards with Covid-19 Severity in Rheumatoid Arthritis: Results from the Covid-19 Global Rheumatology Alliance Physician Registry." Ann Rheum Dis 80, no. 9 (Sep 2021): 1137-46. https://dx.doi.org/10.1136/annrheumdis-2021-220418.

Strangfeld, A., M. Schafer, M. A. Gianfrancesco, S. Lawson-Tovey, J. W. Liew, L. Ljung, E. F. Mateus, C. Richez, M. J. Santos, G. Schmajuk, C. A. Scire, E. Sirotich, J. A. Sparks, P. Sufka, T. Thomas, L. Trupin, Z. S. Wallace, S. Al-Adely, J. Bachiller-Corral, S. Bhana, P. Cacoub, L. Carmona, R. Costello, W. Costello, L. Gossec, R. Grainger, E. Hachulla, R. Hasseli, J. S. Hausmann, K. L. Hyrich, Z. Izadi, L. Jacobsohn, P. Katz, L. Kearsley-Fleet, P. C. Robinson, J. Yazdany, P. M. Machado, and Covid- Global Rheumatology Alliance. "Factors Associated with Covid-19-Related Death in People with Rheumatic Diseases: Results from the Covid-19 Global Rheumatology Alliance Physician-Reported Registry." Ann Rheum Dis 80, no. 7 (Jul 2021): 930-42. https://dx.doi.org/10.1136/annrheumdis-2020-219498.

Sundbaum, J. K., E. V. Arkema, J. Bruchfeld, J. Jonsson, J. Askling, and E. Baecklund. "Tuberculosis in Biologic-Naive Patients with Rheumatoid Arthritis: Risk Factors and Tuberculosis Characteristics." J Rheumatol 48, no. 8 (Aug 2021): 1243-50. https://dx.doi.org/10.3899/jrheum.201251.

Teni, F. S., O. Rolfson, N. Devlin, D. Parkin, E. Naucler, K. Burstrom, and Group Swedish Quality Register Study. "Variations in Patients' Overall Assessment of Their Health across and within Disease Groups Using the Eq-5d Questionnaire: Protocol for a Longitudinal Study in the Swedish National Quality Registers." JMIR Res Protoc 10, no. 8 (Aug 27 2021): e27669. https://dx.doi.org/10.2196/27669.

Tidblad, L., H. Westerlind, B. Delcoigne, J. Askling, and S. Saevarsdottir. "Comorbidities at Diagnosis of Rheumatoid Arthritis: A Population-Based Case-Control Study." Rheumatology (Oxford) 60, no. 8 (Aug 2 2021): 3760-69. https://dx.doi.org/10.1093/rheumatology/keaa856.

Westerlind, H., M. Maciejewski, T. Frisell, S. A. Jelinsky, D. Ziemek, and J. Askling. "What Is the Persistence to Methotrexate in Rheumatoid Arthritis, and Does Machine Learning Outperform Hypothesis-Based Approaches to Its Prediction?", ACR Open Rheumatol 3, no. 7 (Jul 2021): 457-63. https://dx.doi.org/10.1002/acr2.11266.

Barbulescu, A., B. Delcoigne, J. Askling, and T. Frisell. "Gastrointestinal Perforations in Patients with Rheumatoid Arthritis Treated with Biological Disease-Modifying Antirheumatic Drugs in Sweden: A Nationwide Cohort Study." RMD Open 6, no. 2 (Jul 2020). https://dx.doi.org/10.1136/rmdopen-2020-001201.

Brahe, C. H., L. M. Ornbjerg, L. Jacobsson, M. J. Nissen, E. K. Kristianslund, H. Mann, M. J. Santos, J. G. Reino, D. Nordstrom, Z. Rotar, B. Gudbjornsson, F. Onen, C. Codreanu, U. Lindstrom, B. Moller, T. K. Kvien, K. Pavelka, A. Barcelos, C. Sanchez-Piedra, K. K. Eklund, M. Tomsic, T. J. Love, G. Can, R. Ionescu, A. G. Loft, I. E. van der Horst-Bruinsma, G. J. Macfarlane, F. Iannone, L. H. Hyldstrup, N. S. Krogh, M. Ostergaard, and M. L. Hetland. "Retention and Response Rates in 14 261 Psa Patients Starting Tnf Inhibitor Treatment-Results from 12 Countries in Eurospa." Rheumatology (Oxford) 59, no. 7 (Jul 1 2020): 1640-50. https://dx.doi.org/10.1093/rheumatology/kez427.

Cagnotto, G., M. Willim, J. A. Nilsson, M. Compagno, L. T. H. Jacobsson, S. Saevarsdottir, and C. Turesson. "Abatacept in Rheumatoid Arthritis: Survival on Drug, Clinical Outcomes, and Their Predictors-Data from a Large National Quality Register." Arthritis Res Ther 22, no. 1 (Jan 22 2020): 15. https://dx.doi.org/10.1186/s13075-020-2100-y.

Chatzidionysiou, K., B. Delcoigne, T. Frisell, M. L. Hetland, B. Glintborg, L. Dreyer, R. Cordtz, K. Zobbe, D. Nordstrom, N. Trokovic, K. Aaltonen, S. A. Provan, G. Grondal, B. Gudbjornsson, and J. Askling. "How Do We Use Biologics in Rheumatoid Arthritis Patients with a History of Malignancy? An Assessment of Treatment Patterns Using Scandinavian Registers." RMD Open 6, no. 2 (Sep 2020). https://dx.doi.org/10.1136/rmdopen-2020-001363.

Einarsson, J. T., M. Willim, T. Saxne, P. Geborek, and M. C. Kapetanovic. "Secular Trends of Sustained Remission in Rheumatoid Arthritis, a Nationwide Study in Sweden." Rheumatology (Oxford) 59, no. 1 (Jan 1 2020): 205-12. https://dx.doi.org/10.1093/rheumatology/kez273.

Kopp, T. I., B. Delcoigne, E. V. Arkema, R. K. Jacobsen, M. Magyari, E. H. Ibfelt, H. Locht, F. Sellebjerg, R. L. Cordtz, D. V. Jensen, J. Askling, and L. Dreyer. "Risk of Neuroinflammatory Events in Arthritis Patients Treated with Tumour Necrosis Factor Alpha Inhibitors: A Collaborative Population-Based Cohort Study from Denmark and Sweden." Ann Rheum Dis 79, no. 5 (May 2020): 566-72. https://dx.doi.org/10.1136/annrheumdis-2019-216693.

Michelsen, B., U. Lindstrom, C. Codreanu, A. Ciurea, J. Zavada, A. G. Loft, M. Pombo-Suarez, F. Onen, T. K. Kvien, Z. Rotar, M. J. Santos, F. Iannone, A. M. Hokkanen, B. Gudbjornsson, J. Askling, R. Ionescu, M. J. Nissen, K. Pavelka, C. Sanchez-Piedra, S. Akar, J. Sexton, M. Tomsic, H. Santos, M. Sebastiani, J. Osterlund, A. J. Geirsson, G. Macfarlane, I. van der Horst-Bruinsma, S. Georgiadis, C. H. Brahe, L. M. Ornbjerg, M. L. Hetland, and M. Ostergaard. "Drug Retention, Inactive Disease and Response Rates in 1860 Patients with Axial Spondyloarthritis Initiating Secukinumab Treatment: Routine Care Data from 13 Registries in the Eurospa Collaboration." RMD Open 6, no. 3 (Sep 2020). https://dx.doi.org/10.1136/rmdopen-2020-001280.

Michelsen, B., L. M. Ornbjerg, T. K. Kvien, K. Pavelka, M. J. Nissen, D. Nordstrom, M. J. Santos, S. S. Koca, J. Askling, Z. Rotar, B. Gudbjornsson, C. Codreanu, A. G. Loft, E. K. Kristianslund, H. F. Mann, A. Ciurea, K. K. Eklund, E. Vieira-Sousa, A. Yazici, L. Jacobsson, M. Tomsic, T. J. Love, R. Ionescu, I. E. van der Horst-Bruinsma, F. Iannone, M. Pombo-Suarez, G. T. Jones, L. H. Hyldstrup, N. S. Krogh, M. L. Hetland, and M. Ostergaard. "Impact of Discordance between Patient's and Evaluator's Global Assessment on Treatment Outcomes in 14 868 Patients with Spondyloarthritis." Rheumatology (Oxford) 59, no. 9 (Sep 1 2020): 2455-61. https://dx.doi.org/10.1093/rheumatology/kez656.

Morin, M., K. Hellgren, and T. Frisell. "Familial Aggregation and Heritability of Ankylosing Spondylitis - a Swedish Nested Case-Control Study." Rheumatology (Oxford) 59, no. 7 (Jul 1 2020): 1695-702. https://dx.doi.org/10.1093/rheumatology/kez519.

Wadstrom, H., A. Pettersson, K. E. Smedby, and J. Askling. "Risk of Breast Cancer before and after Rheumatoid Arthritis, and the Impact of Hormonal Factors." Ann Rheum Dis 79, no. 5 (May 2020): 581-86. https://dx.doi.org/10.1136/annrheumdis-2019-216756.

Wagman, P., I. Ahlstrand, M. Bjork, and C. Hakansson. "Occupational Balance and Its Association with Life Satisfaction in Men and Women with Rheumatoid Arthritis." Musculoskeletal Care 18, no. 2 (Jun 2020): 187-94. https://dx.doi.org/10.1002/msc.1454.

Waldenlind, K., B. Delcoigne, S. Saevarsdottir, and J. Askling. "Does Autoimmune Thyroid Disease Affect Rheumatoid Arthritis Disease Activity or Response to Methotrexate?", RMD Open 6, no. 2 (Jul 2020). https://dx.doi.org/10.1136/rmdopen-2020-001282.

Westerlind, H., B. Delcoigne, and J. Askling. "Siblings of Patients with Rheumatoid Arthritis Have an Increased Mortality Rate: A Swedish Cohort Study." RMD Open 6, no. 1 (May 2020). https://dx.doi.org/10.1136/rmdopen-2020-001197.

Westerlind, H., J. Ronnelid, M. Hansson, L. Alfredsson, L. Mathsson-Alm, G. Serre, M. Cornillet, R. Holmdahl, P. J. Jakobsson, K. Skriner, L. Klareskog, S. Saevarsdottir, and J. Askling. "Anti-Citrullinated Protein Antibody Specificities, Rheumatoid Factor Isotypes, and Incident Cardiovascular Events in Patients with Rheumatoid Arthritis." Arthritis Rheumatol 72, no. 10 (Oct 2020): 1658-67. https://dx.doi.org/10.1002/art.41381.

Evaluation of an individually tailored smoking-cessation intervention for patients with rheumatoid arthritis in an outpatient clinic. Karlsson, M. L., Hertzberg-Nyquist, K., Saevarsdottir, S., Lundberg, I. E., Demmelmaier, I., Pettersson, S., & Chatzidionysiou, K. (2023).
Scand J Rheumatol, 52(6), 591-600. https://doi.org/10.1080/03009742.2023.2172903

Familial aggregation and heritability of ankylosing spondylitis – a Swedish nested case-control study.
Morin M, Hellgren K, Frisell T.
Rheumatology (Oxford). 2019 Nov 5. pii: kez519. doi: 10.1093/rheumatology/kez519. [Epub ahead of print]

Repeated switches between reference product etanercept and biosimilar do not affect disease activity or retention rate of etanercept over 24 months – a cohort study with historical controls.
Sigurdardottir V, Svärd A.
Joint Bone Spine. 2019 Jul;86(4):529-530. doi: 10.1016/j.jbspin.2018.12.003. Epub 2018 Dec 22.

Consumption of Meat and Dairy Products Is Not Associated with the Risk for Rheumatoid Arthritis among Women: A Population-Based Cohort Study.
Sundström B, Ljung L, Di Giuseppe D.
Nutrients. 2019 Nov 19;11(11). pii: E2825. doi: 10.3390/nu11112825.

Treatment retention of infliximab and etanercept originators versus their corresponding biosimilars: Nordic collaborative observational study of 2334 biologics naïve patients with spondyloarthritis.
Lindström U, Glintborg B, Di Giuseppe D, Nordström D, Aarrestad Provan S, Gudbjornsson B, Askling J, Lund Hetland M, Aaltonen K, Steen Krogh N, Geirsson AJ, Jacobsson LTH.
RMD Open. 2019 Oct 23;5(2):e001079. doi: 10.1136/rmdopen-2019-001079. eCollection 2019.

Treatment response and drug retention rates in 24 195 biologic-naïve patients with axial spondyloarthritis initiating TNFi treatment: routine care data from 12 registries in the EuroSpA collaboration.
Ørnbjerg LM, Brahe CH, Askling J, Ciurea A, Mann H, Onen F, Kristianslund EK, Nordström D, Santos MJ, Codreanu C, Gómez-Reino J, Rotar Z, Gudbjornsson B, Di Giuseppe D, Nissen MJ, Pavelka K, Birlik M, Kvien T, Eklund KK, Barcelos A, Ionescu R, Sanchez-Piedra C, Tomsic M, Geirsson ÁJ, Loft AG, van der Horst-Bruinsma I, Jones G, Iannone F, Hyldstrup L, Krogh NS, Hetland ML, Østergaard M.
Ann Rheum Dis. 2019 Nov;78(11):1536-1544. doi: 10.1136/annrheumdis-2019-215427.

Occupational exposure to asbestos and silica and risk of developing rheumatoid arthritis: findings from a Swedish population-based case-control study. 
Ilar A, Klareskog L, Saevarsdottir S, Wiebert P, Askling J, Gustavsson P, Alfredsson L.
RMD Open. 2019 Jul 11;5(2):e000978. doi: 10.1136/rmdopen-2019-000978. eCollection 2019.

Biological treatment of ankylosing spondylitis: a nationwide study of treatment trajectories on a patient level in clinical practice.
Lindström U, Olofsson T, Wedrén S, Qirjazo I, Askling J.
Arthritis Res Ther. 2019 May 28;21(1):128. doi: 10.1186/s13075-019-1908-9.

Siblings of patients with rheumatoid arthritis are at increased risk of acute coronary syndrome.
Westerlind H, Holmqvist M, Ljung L, Frisell T, Askling J.
Ann Rheum Dis. 2019 May;78(5):683-687. doi: 10.1136/annrheumdis-2018-214828. Epub 2019 Feb 20.

Comparative effectiveness of abatacept, rituximab, tocilizumab and TNFi biologics in RA: results from the nationwide Swedish register.
Frisell T, Dehlin M, Di Giuseppe D, Feltelius N, Turesson C, Askling J; ARTIS Study Group .
Rheumatology (Oxford). 2019 Jan 21. doi: 10.1093/rheumatology/key433. [Epub ahead of print]

Risk of serious infections in patients with rheumatoid arthritis treated in routine care with abatacept, rituximab and tocilizumab in Denmark and Sweden.
Grøn KL, Arkema EV, Glintborg B, Mehnert F, Østergaard M, Dreyer L, Nørgaard M, Krogh NS, Askling J, Hetland ML; ARTIS Study Group.
Ann Rheum Dis. 2019 Mar;78(3):320-327. doi: 10.1136/annrheumdis-2018-214326. Epub 2019 Jan 5.

Machine-learning based knowledge discovery in rheumatoid arthritis related registry data to identify predictors of persistent pain.
Lötsch J, Alfredsson L, Lampa J.
Pain. 2019 Aug 30. doi: 10.1097/j.pain.0000000000001693. [Epub ahead of print]

Secular trends of sustained remission in rheumatoid arthritis, a nationwide study in Sweden.
Einarsson JT, Willim M, Saxne T, Geborek P, Kapetanovic MC.
Rheumatology(Oxford). 2019 Jul 13. pii: kez273. doi: 10.1093/rheumatology/kez273. [Epub ahead of print]

Comparison of agreement between internet-based registration of patient-reported outcomes and clinic-based paper forms within the Swedish Rheumatology Quality Register.
Hofstedt O, Di Giuseppe D, Alenius GM, Stattin N, Forsblad-D’Elia H, Ljung L.
Scand J Rheumatol. 2019 Jul;48(4):326-330. doi: 10.1080/03009742.2018.1551964. Epub 2019 Feb 13.

Efficacy and safety of rituximab in anti-synthetase antibody positive and negative subjects with idiopathic inflammatory myopathy: a registry-based study.
Leclair V, Galindo-Feria AS, Dastmalchi M, Holmqvist M, Lundberg IE.
Rheumatology(Oxford). 2019 Jul 1;58(7):1214-1220. doi: 10.1093/rheumatology/key450.

Prevalence of sustained remission in rheumatoid arthritis: impact of criteria sets and disease duration, a Nationwide Study in Sweden.
Einarsson JT, Willim M, Ernestam S, Saxne T, Geborek P, Kapetanovic MC.
Rheumatology(Oxford). 2019 Feb 1;58(2):227-236. doi: 10.1093/rheumatology/key054.

Mortality following new-onset Rheumatoid Arthritis: has modern Rheumatology had an impact?
Holmqvist M1, Ljung L2, Askling J
Ann Rheum Dis.2018 Jan;77(1):85-91. doi: 10.1136/annrheumdis-2017-212131. Epub 2017 Sep 26.

Tuberculosis Risk in Ankylosing Spondylitis, Other Spondyloarthritis, and Psoriatic Arthritis in Sweden: A Population-Based Cohort Study.
de Vries MK1, Arkema EV2, Jonsson J3, Bruchfeld J4, Jacobsson LTH5, Askling J1; ARTIS Study Group
Arthritis Care Res (Hoboken). 2018 Oct;70(10):1563-1567. doi: 10.1002/acr.23487. Epub 2018 Sep 4.

Long-Term Dietary Changes after Diagnosis of Rheumatoid Arthritis in Swedish Women: Data from a Population-Based Cohort.
Lourdudoss C1, Arnaud L1, Wolk A2, van Vollenhoven RF1, Di Giuseppe D
Int J Rheumatol.2018 Jun 11;2018:9152480. doi: 10.1155/2018/9152480. eCollection 2018.

Patient characteristics influence the choice of biological drug in RA, and will make non-TNFi biologics appear more harmful than TNFi biologics.
Frisell T1, Baecklund E2, Bengtsson K3, Di Giuseppe D1, Forsblad-d’Elia H4, Askling J1,5; ARTIS Study group
Ann Rheum Dis.2018 May;77(5):650-657. doi: 10.1136/annrheumdis-2017-212395. Epub 2017 Dec 13.

Risk of cardiac rhythm disturbances and aortic regurgitation in different spondyloarthritis subtypes in comparison with general population: a register-based study from Sweden.
Bengtsson K1, Forsblad-d’Elia H1,2, Lie E1,3, Klingberg E1, Dehlin M1, Exarchou S4, Lindström U1, Askling J5, Jacobsson
LTH Ann Rheum Dis.2018 Apr;77(4):541-548. doi: 10.1136/annrheumdis-2017-212189. Epub 2017 Dec 19.

Transmission of rheumatoid arthritis through blood transfusion: a retrospective cohort study.
Just SA1, Rostgaard K2, Titlestad K3, Edgren G4,5, Erikstrup C6, Ullum H7, Pedersen OB8, Nielsen KR9, Askling J10,11, Lindegaard H1, Hjalgrim H2,12.
Ann Rheum Dis.2018 Oct;77(10):1536-1537. doi: 10.1136/annrheumdis-2017-212844. Epub 2018 Mar 1.

Uptake of rheumatology biosimilars in the absence of forced switching.
Di Giuseppe D1, Frisell T1, Ernestam S2, Forsblad-D’Elia H3, Lindqvist E4, Lindström U5, Sjöwall C6, Askling J1,2; ARTIS group
Expert Opin Biol Ther.2018 May;18(5):499-504. doi: 10.1080/14712598.2018.1458089. Epub 2018 Apr 10.

Biological treatment in ankylosing spondylitis in the Nordic countries during 2010-2016: a collaboration between five biological registries.
Glintborg B1,2, Lindström U3, Aaltonen K4, Kristianslund EK5, Gudbjornsson B6, Chatzidionysiou K7, Askling J7, Nordström D8, Hetland ML1,9, Di Giuseppe D7, Dreyer L2, Kristensen LE10, Jørgensen TS10, Eklund K11, Grondal G12, Ernestam S7, Joensuu J13, Törmänen M14, Skydsgaard H15, Hagfors J16, Kvien TK5, Lie E5, Fagerli K5, Geirsson AJ12, Jonsson H12, Provan SA5, Krogh NS17, Jacobsson L
Scand J Rheumatol.2018 Nov;47(6):465-474. doi: 10.1080/03009742.2018.1444199. Epub 2018 Aug 2.

Tumor Necrosis Factor Inhibitors and Cancer Recurrence in Swedish Patients With Rheumatoid Arthritis: A Nationwide Population-Based Cohort Study.
Raaschou P1, Söderling J1, Turesson C2, Askling J3; ARTIS Study Group
Ann Intern Med.2018 Sep 4;169(5):291-299. doi: 10.7326/M17-2812. Epub 2018 Aug 14.

Performance of the Expanded Cardiovascular Risk Prediction Score for Rheumatoid Arthritis in a geographically distant National Register-based cohort: an external validation.
Ljung L1,2, Ueda P1, Liao KP3, Greenberg JD4, Etzel CJ5, Solomon DH3, Askling J
RMD Open.2018 Dec 16;4(2):e000771. doi: 10.1136/rmdopen-2018-000771. eCollection 2018.

Risk of Thyroxine-Treated Autoimmune Thyroid Disease Associated With Disease Onset in Patients With Rheumatoid Arthritis.
Waldenlind K1, Saevarsdottir S1,2, Bengtsson C2, Askling J
JAMA Netw Open.2018 Oct 5;1(6):e183567. doi: 10.1001/jamanetworkopen.2018.3567.

Impact of extra-articular spondyloarthritis manifestations and comorbidities on drug retention of a first TNF-inhibitor in ankylosing spondylitis: a population-based nationwide study.
Lindström U1, Olofsson T2, Wedrén S1, Qirjazo I3, Askling J1,4.
RMD Open.2018 Oct 15;4(2):e000762. doi: 10.1136/rmdopen-2018-000762. eCollection 2018.

Opportunities and challenges for real-world studies on chronic inflammatory joint diseases through data enrichment and collaboration between national registers: the Nordic example.
Chatzidionysiou K1, Hetland ML2,3, Frisell T1, Di Giuseppe D1, Hellgren K1, Glintborg B4,5, Nordström D6, Aaltonen K7, Törmänen MR8, Klami Kristianslund E9, Kvien TK9, Provan SA9, Björn Guðbjörnsson B10, Dreyer L11, Kristensen LE12, Jørgensen TS12, Jacobsson L13, Askling J
RMD Open.2018 Apr 12;4(1):e000655. doi: 10.1136/rmdopen-2018-000655. eCollection 2018.

Muscle Strength and Muscle Endurance During the First Year of Treatment of Polymyositis and Dermatomyositis: A Prospective Study.
Alexanderson H1,2, Regardt M3,4, Ottosson C3,4, Alemo Munters L3,4, Dastmalchi M3,4, Dani L3,4, Lundberg IE3,4.
J Rheumatol. 2018 Apr;45(4):538-546. doi: 10.3899/jrheum.161183. Epub 2018 Feb 1.

Changes in anti-citrullinated protein antibody isotype levels in relation to disease activity and response to treatment in early rheumatoid arthritis.
Kastbom A, Roos Ljungberg K, Ziegelasch M, Wetterö J, Skogh T, Martinsson K.
Clin Exp Immunol. 2018;194:391-399.

Foot Barriers in Patients With Early Rheumatoid Arthritis: An Interview Study Among Swedish Women and Men.
Björk M, Thyberg I, Valtersson E, Östlund G, Stenström B, Sverker
Arthritis Care Res (Hoboken). 2018;70:1348-1354.

Women’s situation-specific strategies in managing participation restrictions due to early rheumatoid arthritis: A gender comparison.
Östlund G, Björk M, Thyberg I, Valtersson E, Sverker A.
Musculoskeletal Care. 2018;16:251-259

Costs and disease activity in early rheumatoid arthritis in 1996-2000 and 2006-2011, improved outcome and shift in distribution of costs: a two-year follow-up.
Husberg M, Bernfort L, Hallert
Scand J Rheumatol. 2018;4:378-383

Immunoglobulin (Ig)G1 and IgG4 anti-cyclic citrullinated peptide (CCP) associate with shared epitope, whereas IgG2 anti-CCP associates with smoking in patients with recent-onset rheumatoid arthritis (the Swedish TIRA project).
Martinsson K, Johansson A, Kastbom A, Skogh T.
Clin Exp Immunol. 2017;188:53-62

Non-medical costs during the first year after diagnosis in two cohorts of patients with early rheumatoid arthritis, enrolled 10 years apart.
Husberg M, Davidson T, Hallert
Clin Rheumatol. 2017;36:499-506

’Like the worst toothache you’ve had’ – How people with rheumatoid arthritis describe and manage pain.
Bergström M, Ahlstrand I, Thyberg I, Falkmer T, Börsbo B, Björk M.
Scand J Occup Ther 2017:1-9

Self-efficacy and pain acceptance as mediators of the relationship between pain and performance of valued life activities in women and men with rheumatoid arthritis.
Ahlstrand I, Vaz S, Falkmer T, Thyberg I, Björk M.
Clin Rehabil. 2017;31:824-834

Decrease in bone mineral density during three months after diagnosis of early rheumatoid arthritis measured by digital X-ray radiogrammetry predicts radiographic joint damage after one year.
Ziegelasch M, Forslind K, Skogh T, Riklund K, Kastbom A, Berglin E.
Arthritis Res Ther. 2017;2;19:195

Are ankylosing spondylitis, psoriatic arthritis and undifferentiated spondyloarthritis associated with an increased risk of cardiovascular events? A prospective nationwide population-based cohort study.
Bengtsson K, Forsblad-d’Elia H, Lie E, Klingberg E, Dehlin M, Exarchou S, Lindström U, Askling J, Jacobsson LTH.
Arthritis Res Ther. 2017 May 18

Association Between Rheumatoid Arthritis and Risk of Ischemic and Nonischemic Heart Failure.
Mantel Ä, Holmqvist M, Andersson DC, Lund LH, Askling J.
J Am Coll Cardiol. 2017 Mar 14

Rheumatoid Arthritis and Risk of Malignant Lymphoma: Is the Risk Still Increased?
Hellgren K, Baecklund E, Backlin C, Sundstrom C, Smedby KE, Askling J.
Arthritis Rheumatol. 2017 Apr

Patient characteristics influence the choice of biological drug in RA, and will make non-TNFi biologics appear more harmful than TNFi biologics.
Frisell T, Baecklund E, Bengtsson K, Di Giuseppe D, Forsblad-d’Elia H, Askling J; ARTIS Study group.
Ann Rheum Dis. 2017 Dec 13

Cancer risk in patients with spondyloarthritis treated with TNF inhibitors: a collaborative study from the ARTIS and DANBIO registers.
Hellgren K, Dreyer L, Arkema EV, Glintborg B, Jacobsson LT, Kristensen LE, Feltelius N, Hetland ML, Askling J; ARTIS Study Group, For the DANBIO Study Group.
Ann Rheum Dis. 2017 Jan

Predictors of work disability after start of anti-TNF therapy in a national cohort of Swedish patients with rheumatoid arthritis: does early anti-TNF therapy bring patients back to work?
Olofsson T, Petersson IF, Eriksson JK, Englund M, Nilsson JA, Geborek P, Jacobsson LTH, Askling J, Neovius M; ARTIS Study Group.
Ann Rheum Dis. 2017 Jul

Spectrum of lymphomas across different drug treatment groups in rheumatoid arthritis: a European registries collaborative project.
Mercer LK, Regierer AC, Mariette X, Dixon WG, Baecklund E, Hellgren K, Dreyer L, Hetland ML, Cordtz R, Hyrich K, Strangfeld A, Zink A, Canhao H, Hernandez MV, Tubach F, Gottenberg JE, Morel J, Zavada J, Iannone F, Askling J, Listing J.
Ann Rheum Dis. 2017 Dec

Risk of invasive melanoma in patients with rheumatoid arthritis treated with biologics: results from a collaborative project of 11 European biologic registers.
Mercer LK, Askling J, Raaschou P, Dixon WG, Dreyer L, Hetland ML, Strangfeld A, Zink A, Mariette X, Finckh A, Canhao H, Iannone F, Zavada J, Morel J, Gottenberg JE, Hyrich KL, Listing J.
Ann Rheum Dis. 2017 Feb

Tumour necrosis factor inhibitor treatment and occurrence of anterior uveitis in ankylosing spondylitis: results from the Swedish biologics register.
Lie E, Lindström U, Zverkova-Sandström T, Olsen IC, Forsblad-d’Elia H, Askling J, Kapetanovic MC, Kristensen LE, Jacobsson LTH.
Ann Rheum Dis. 2017 Sep

Tuberculosis risk in ankylosing spondylitis, other spondyloarthritis and psoriatic arthritis in Sweden: a population-based cohort study.
de Vries MK, Arkema EV, Jonsson J, Bruchfeld J, Jacobsson LT, Askling J; ARTIS Study Group.
Arthritis Care Res (Hoboken). 2017 Dec 1

Mortality following new-onset Rheumatoid Arthritis: has modern Rheumatology had an impact?
Holmqvist M, Ljung L, Askling J.
Ann Rheum Dis. 2018 Jan

Acute coronary syndrome in new-onset rheumatoid arthritis: a population-based nationwide cohort study of time trends in risks and excess risks.
Holmqvist M, Ljung L, Askling J.
Ann Rheum Dis. 2017 Oct

Malignant Neoplasms in Patients With Rheumatoid Arthritis Treated With Tumor Necrosis Factor Inhibitors, Tocilizumab, Abatacept, or Rituximab in Clinical Practice: A Nationwide Cohort Study From Sweden.
Wadström H, Frisell T, Askling J; Anti-Rheumatic Therapy in Sweden (ARTIS) Study Group.
JAMA Intern Med. 2017 Nov 1

Infection rates in patients from five rheumatoid arthritis (RA) registries: contextualising an RA clinical trial programme.
Yamanaka H, Askling J, Berglind N, Franzen S, Frisell T, Garwood C, Greenberg JD, Ho M, Holmqvist M, Novelli Horne L, Inoue E, Michaud K, Pappas DA, Reed G, Symmons D, Tanaka E, Tran TN, Verstappen SMM, Wesby-van Swaay E, Nyberg F.
RMD Open. 2017 Oct

Incidence and prevalence of idiopathic inflammatory myopathies in Sweden: a nationwide population-based study.
Svensson J, Arkema EV, Lundberg IE, Holmqvist M.
Rheumatology (Oxford). 2017 May 1

Anticollagen type II antibodies are associated with an acute onset rheumatoid arthritis phenotype and prognosticate lower degree of inflammation during 5 years follow-up.
Manivel VA, Mullazehi M, Padyukov L, Westerlind H, Klareskog L, Alfredsson L, Saevarsdottir S, Rönnelid J.
Ann Rheum Dis. 2017 Sep

Pain rather than self-reported sedentary time explains variation in perceived health and activity limitation in persons with rheumatoid arthritis: a cross sectional study in Sweden.
Demmelmaier I, Åsenlöf P, Bergman P, Nordgren B, Opava CH.
Rheumatol Int. 2017 Jun

Muscle Strength and Muscle Endurance During the First Year of Treatment of Polymyositis and Dermatomyositis: A Prospective Study.
Alexanderson H, Regardt M, Ottosson C, Alemo Munters L, Dastmalchi M, Dani L, Lundberg IE.
J Rheumatol. 2018 Feb 1

Are dietary vitamin D, omega-3 fatty acids and folate associated with treatment results in patients with early rheumatoid arthritis? Data from a Swedish population-based prospective study.
Lourdudoss C, Wolk A, Nise L, Alfredsson L, Vollenhoven RV.
BMJ Open. 2017 Jun 10

Receptor activator of nuclear factor kappa-B ligand (RANKL) but not sclerostin or gene polymorphisms is related to joint destruction in early rheumatoid arthritis.
Antonia Boman, Heidi Kokkonen, Lisbeth Ärlestig, Ewa Berglin, Solbritt Rantapää Dahlqvist.
Clin Rheumatol. 2017 May

Self-efficacy, and pain acceptance as mediators of the relationship between pain and performance of valued life activities in women and men with rheumatoid arthritis.
Ahlstrand I, Vaz S, Falkmer T, et al.
Clin Rehabil. 2016 May 4

Anticitrullinated protein antibodies and rheumatoid factor are associated with increased mortality but with different causes of death in patients with rheumatoid arthritis: a longitudinal study in three European cohorts.
Ajeganova S, Humphreys JH, Verheul MK, et al.
Ann Rheum Dis. 2016 Nov;75(11):1924–1932.

Remaining Pain in Early Rheumatoid Arthritis Patients Treated with Methotrexate.
Altawil R, Saevarsdottir S, Wedrén S, et al.
Arthritis Care Res (Hoboken). 2016 Aug;68(8):1061–8.

How comparable are rates of malignancies in patients with rheumatoid arthritis across the world? A comparison of cancer rates, and means to optimize their comparability, in five RA registries.
Askling J, Berglind N, Franzen S, et al.
Ann Rheum Dis. 2016 Oct;75(10):1789–96.

Living with persistent rheumatoid arthritis: a BARFOT study.
Bala SV, Samuelson K, Hagell P, et al.
J Clin Nurs. 2016 Dec 21

Comparisons between comorbid conditions and health care consumption in rheumatoid arthritis patients with or without biological disease-modifying anti-rheumatic drugs: a register-based study.
Bengtsson K, Jacobsson LT, Rydberg B, et al.
BMC Musculoskelet Disord. 2016 Dec 12;17(1):499.

Trajectories of Physical Activity Over Two Years in Persons with Rheumatoid Arthritis. Arthritis Care Res (Hoboken).
Demmelmaier I, Dufour AB, Nordgren B, et al.
2016 Aug;68(8):1069–77

Prevalence of Periodontitis in Patients with Established Rheumatoid Arthritis: A Swedish Population Based Case-Control Study.
Eriksson K, Nise L, Kats A, et al.
PLoS One. 2016 May 20;11(5): e0155956

Infliximab Versus Conventional Combination Treatment and Seven-Year Work Loss in Early Rheumatoid Arthritis: Results of a Randomized Swedish Trial.
Eriksson JK, Wallman JK, Miller H, et al.
Arthritis Care Res (Hoboken). 2016 Dec;68(12):1758-1766

Mortality in ankylosing spondylitis: results from a nationwide population-based study.
Exarchou S, Lie E, Lindström U, Askling J, et al.
Ann Rheum Dis. 2016 Aug;75(8):1466–72

Familial aggregation of arthritis-related diseases in seropositive and seronegative rheumatoid arthritis: a register-based case-control study in Sweden.
Frisell T, Hellgren K, Alfredsson L, et al.
Ann Rheum Dis. 2016 Jan;75(1):183–9.

Does a family history of RA influence the clinical presentation and treatment response in RA?
Frisell T, Saevarsdottir S, Askling J.
Ann Rheum Dis. 2016 Jun;75(6):1120–5.

Association of a multibiomarker disease activity score at multiple time-points with radiographic progression in rheumatoid arthritis: results from the SWEFOT trial.
Hambardzumyan K, Bolce RJ, Saevarsdottir S, et al.
RMD Open. 2016 Mar 1;2(1).

 A multi-biomarker disease activity score and the choice of second-line therapy in early rheumatoid arthritis after methotrexate failure.
Hambardzumyan K, Saevarsdottir S, Forslind K, et al.
Arthritis Rheumatol. 2016 Dec 19.

Cancer risk in patients with spondyloarthritis treated with TNF inhibitors: a collaborative study from the ARTIS and DANBIO registers.
Hellgren K, Dreyer L, Arkema EV, et al.
Ann Rheum Dis. 2017 Jan;76(1):105-111. Epub 2016 May 4.

Body mass does not impact the clinical response to intravenous abatacept in patients with rheumatoid arthritis. Analysis from the ”pan-European registry collaboration for abatacept (PANABA).
Iannone F, Courvoisier DS, Gottenberg JE, et al.
Clin Rheumatol. 2016 Dec 14

A genetic risk score composed of rheumatoid arthritis risk alleles, HLA-DRB1 haplotypes, and response to TNFi therapy – results from a Swedish cohort study.
Jiang X, Askling J, Saevarsdottir S, et al.
Arthritis Res Ther. 2016 Dec 3;18(1):288.

An Immunochip-based interaction study of contrasting interaction effects with smoking in ACPA-positive versus ACPA-negative rheumatoid arthritis.
Jiang X, Källberg H, Chen Z, et al.
Rheumatology (Oxford). 2016 Jan;55(1):149-55

Changes in the anticitrullinated peptide antibody response in relation to therapeutic outcome in early rheumatoid arthritis: results from the SWEFOT trial.
Kastbom A, Forslind K, Ernestam S, et al.
Ann Rheum Dis. 2016 Feb;75(2):356-61

Antibodies to Porphyromonas gingivalis Indicate Interaction Between Oral Infection, Smoking, and Risk Genes in Rheumatoid Arthritis Etiology.
Kharlamova N, Jiang X, Sherina N, et al.
Arthritis Rheumatol. 2016 Mar;68(3):604–13.

Childhood hospitalisation with infections and later development of ankylosing spondylitis: a national case-control study.
Lindström U, Exarchou S, Lie E, et al.
Arthritis Res Ther. 2016 Oct 22;18(1):240.

Perinatal characteristics, older siblings, and risk of ankylosing spondylitis: a case-control study based on national registers.
Lindström U, Forsblad-d’Elia H, Askling J, et al.
Arthritis Res Ther. 2016 Jan 19; 18:16

Response to biological treatment and subsequent risk of coronary events in rheumatoid arthritis.
Ljung L, Rantapää-Dahlqvist S, Jacobsson LT, et al.
Ann Rheum Dis. 2016 Dec;75(12):2087-2094

Immunoglobulin (Ig)G1 and IgG4 anti-cyclic citrullinated peptide (CCP) associate with shared epitope, whereas IgG2 anti-CCP associates with smoking in patients with recent-onset rheumatoid arthritis (the Swedish TIRA project).
Martinsson K, Johansson A, Kastbom A, et al.
Clin Exp Immunol. 2016 Nov 17.

Risk of invasive melanoma in patients with rheumatoid arthritis treated with biologics: results from a collaborative project of 11 European biologic registers.
Mercer LK, Askling J, Raaschou P,et al.
Ann Rheum Dis. 2017 Feb;76(2):386-391. Epub 2016 Jun 15.

Can rheumatoid arthritis (RA) registries provide contextual safety data for modern RA clinical trials? The case for mortality and cardiovascular disease.
Michaud K, Berglind N, Franzén S, et al.
Ann Rheum Dis. 2016 Oct;75(10):1797-805

Patient focused registries can improve health, care, and science.
Nelson EC, Dixon-Woods M, Batalden PB, et al.
BMJ. 2016 Jul 1;354: i3319.

Does disease activity at start of biologic therapy influence work-loss in RA patients?
Olofsson T, Johansson K, Eriksson JK, et al.
Rheumatology (Oxford). 2016 Apr;55(4):729–34

Rheumatoid arthritis, anti-tumour necrosis factor treatment, and risk of squamous cell and basal cell skin cancer: cohort study based on nationwide prospectively recorded data from Sweden.
Raaschou P, Simard JF, Asker Hagelberg C, et al.
BMJ. 2016 Jan 28;352: i262.

Antibodies to carbamylated α-enolase epitopes in rheumatoid arthritis also bind citrullinated epitopes and are largely indistinct from anti-citrullinated protein antibodies.
Reed E, Jiang X, Kharlamova N, et al.
Arthritis Res Ther. 2016 May 4;18(1):96

Persistently active disease is common in patients with rheumatoid arthritis, particularly in women: a long-term inception cohort study.
Svensson B, Andersson M, Forslind K, et al.
Scand J Rheumatol. 2016 Nov;45(6):448–455.

Do RA or TNF inhibitors increase the risk of cervical neoplasia or of recurrence of previous neoplasia? A nationwide study from Sweden.
Wadström H, Frisell T, Sparén P, et al.
Ann Rheum Dis. 2016 Jul;75(7):1272–8.

Smoking is associated with the concurrent presence of multiple autoantibodies in rheumatoid arthritis rather than with anti-citrullinated protein antibodies per se: a multicenter cohort study.
van Wesemael TJ, Ajeganova S, Humphreys J, et al.
Arthritis Res Ther. 2016 Dec 1;18(1):285.

The Use of Avoidance, Adjustment, Interaction, and Acceptance Strategies to Handle Participation Restrictions Among Swedish Men with Early Rheumatoid Arthritis. Musculoskeletal Care.
Östlund G, Thyberg I, Valtersson E, et al.
2016 Dec;14(4):206-218

Pain and activity limitations in women and men with contemporary treated early RA compared to 10 years ago: the Swedish TIRA project
Ahlstrand I, Thyberg I, Falkmer T, Dahlström Ö, Björk M
Scand J Rheumatol. 2015; 44(4):259-64

Comparing Five Year Out-Come in Two Cohorts of Patients with Early Rheumatoid Arthritis – A BARFOT Study
Andersson ML, Forslind K, Hafström I
Open Rheumatol J. 2015 Feb 3;9:8-15

How comparable are rates of malignancies in patients with rheumatoid arthritis across the world? A comparison of cancer rates, and means to optimise their comparability, in five RA registries.
Askling J, Berglind N, Franzen S, Frisell T, Garwood C, Greenberg JD, Ho M, Holmqvist M, Horne L, Inoue E, Michaud K, Nyberg F, Pappas DA, Reed G, Tanaka E, Tran TN, Verstappen SM, Yamanaka H, Wesby-van Swaay E, Symmons D
Ann Rheum Dis. 2015 Nov. 30.

Effectiveness and survival-on-drug of certolizumab pegol in rheumatoid arthritis in clinical practice: results from the national Swedish register
Chatzidionysiou K, Kristensen LE, Eriksson J, Askling J, van Vollenhoven R, For the Artis Group.
Scand J Rheumatol. 2015 Nov; 44(6):431-7

Physical activity and risk of rheumatoid arthritis in women: a population-based prospective study
Di Giuseppe D, Bottai M, Askling J, Wolk A
Arthritis Res Ther. 2015 Mar 4; 17:40.

Costs for hospital care, drugs and lost work days in incident and prevalent rheumatoid arthritis: how large, and how are they distributed?
Eriksson JK, Johansson K, Askling J, Neovius M
Ann Rheum Dis. 2015 Apr; 74(4):648-54

Cost-effectiveness of infliximab versus conventional combination treatment in methotrexate-refractory early rheumatoid arthritis: 2-year results of the register-enriched randomised controlled SWEFOT trial.
Eriksson JK, Karlsson JA, Bratt J, Petersson IF, van Vollenhoven RF, Ernestam S, Geborek P, Neovius M
Ann Rheum Dis. 2015 Jun; 74(6):1094-101

Mortality in ankylosing spondylitis: results from a nationwide population-based study
Exarchou S, Lie E, Lindström U, Askling J, Forsblad-d’Elia H, Turesson C, Kristensen LE, Jacobsson LT.
Ann Rheum Dis. 2015 Sep 2

The Swedish Early Psoriatic Arthritis Registry 5-year Followup: Substantial Radiographic Progression Mainly in Men with High Disease Activity and Development of Dactylitis
Geijer M, Lindqvist U, Husmark T, Alenius GM, Larsson PT, Teleman A, Theander E
J Rheumatol. 2015 Nov; 42(11):2110-7

Targeting of anti-citrullinated protein/peptide antibodies in rheumatoid arthritis using peptides mimicking endogenously citrullinated fibrinogen antigens.
Fernandes-Cerqueira C, Ossipova E, Gunasekera S, Hansson M, Mathsson L, Catrina AI, Sommarin Y, Klareskog L, Lundberg K, Rönnelid J, Göransson U, Jakobsson PJ
Arthritis Res Ther. 2015 Jun 10; 17:155

Drug adherence, response and predictors thereof for tocilizumab in patients with rheumatoid arthritis: results from the Swedish biologics register
Forsblad-d’Elia H, Bengtsson K, Kristensen LE, Jacobsson LT
Rheumatology (Oxford). 2015 Jul; 54(7):1186-93

Does a family history of RA influence the clinical presentation and treatment response in RA?
Frisell T, Saevarsdottir S, Askling J
Ann Rheum Dis. 2015 Jun 19.

Pregnancy outcomes in patients with ankylosing spondylitis: a nationwide register study
Jakobsson GL, Stephansson O, Askling J, Jacobsson LT
Ann Rheum Dis. 2015 Dec 23.

To what extent is the familial risk of rheumatoid arthritis explained by established rheumatoid arthritis risk factors?
Jiang X, Frisell T, Askling J, Karlson EW, Klareskog L, Alfredsson L, Källberg H,
Arthritis Rheumatol. 2015 Feb; 67(2):352-62

Higher education is associated with a better rheumatoid arthritis outcome concerning for pain and function but not disease activity: results from the EIRA cohort and Swedish rheumatology register
Jiang X, Sandberg ME, Saevarsdottir S, Klareskog L, Alfredsson L, Bengtsson C.
Arthritis Res Ther. 2015 Nov 6; 17:317.

Does disease activity at the start of biologic therapy influence health care costs in patients with RA?
Johansson K, Eriksson JK, van Vollenhoven R, Miller H, Askling J, Neovius M; ARTIS Study Group
Rheumatology (Oxford). 2015 Aug; 54(8):1472-7.

Physician preferences and variations in prescription of biological drugs for rheumatoid arthritis – a register-based study of 4010 patients in Sweden.
Kalkan A, Husberg M, Hallert E, Roback K, Thyberg I, Skogh T, Carlsson P
Arthritis Care Res (Hoboken). 2015 Jun 19

The EULAR Study Group for Registers and Observational Drug Studies: comparability of the patient case mix in the European biologic disease modifying anti-rheumatic drug registers
Kearsley-Fleet L, Závada J, Hetland ML, Nordström DC, Aaltonen KJ, Listing J, Zink A, Gati T, Rojkovich B, Iannone F, Gremese E, van Riel PL, van de Laar MA, Lie E, Kvien TK, Canhão H, Fonseca JE, Rotar Ž, Loza E, Carmona L, Askling J, Johansson K, Finckh A, Dixon WG, Hyrich KL; EULAR Study Group for Registers and Observational Drug Studies ,
Rheumatology (Oxford). 2015 Jun; 54(6):1074-9

Interactions between amino acid-defined major histocompatibility complex class II variants and smoking in seropositive rheumatoid arthritis
Kim K, Jiang X, Cui J, Lu B, Costenbader KH, Sparks JA, Bang SY, Lee HS, Okada Y, Raychaudhuri S, Alfredsson L, Bae SC, Klareskog L, Karlson EW,
Arthritis Rheumatol. 2015 Oct;67(10):2611-23

The effect of comedication with conventional synthetic disease modifying antirheumatic drugs on TNF inhibitor drug survival in patients with ankylosing spondylitis and undifferentiated spondyloarthritis: results from a nationwide prospective study
Lie E, Kristensen LE, Forsblad-d’Elia H, Zverkova-Sandström T, Askling J, Jacobsson LT; ARTIS Study Group
Ann Rheum Dis. 2015 Jun;74(6):970-8

Policies to foster quality improvement registries: lessons from the Swedish case
Levay, C
J Intern Med. 2015 Oct 5

Serum survivin predicts responses to treatment in active rheumatoid arthritis: a post hoc analysis from the SWEFOT trial
Levitsky A, Erlandsson MC, van Vollenhoven RF, Bokarewa MI
BMC Med. 2015 Sep 30;13:247

Predicted vs. observed radiographic progression in early rheumatoid arthritis (POPeRA): results from a randomized trial
Levitsky A, Forslind K, van Vollenhoven RF; SWEFOT trial group
Scand J Rheumatol. 2015; 44(5):348-53

Risk Factors for the Rapid Increase in Risk of Acute Coronary Events in Patients With New-Onset Rheumatoid Arthritis: A Nested Case-Control Study.
Mantel Ä, Holmqvist M, Nyberg F, Tornling G, Frisell T, Alfredsson L, Askling J
Arthritis Rheumatol. 2015 Nov; 67(11):2845-54

Patient reported outcome measures in practice
Nelson EC, Eftimovska E, Lind C, Hager A, Wasson JH, Lindblad S
BMJ. 2015 Feb 10; 350:g7818. Abstrakt finns inte.

Using epidemiological registry data to provide background rates as context for adverse events in a rheumatoid arthritis drug development program: a coordinated approach
Nyberg F, Askling J, Berglind N, Franzén S, Ho M, Holmqvist M, Horne L, Lampl K, Michaud K, Pappas DA, Reed G, Symmons D, Tanaka E, Tran TN, Verstappen SM, Wesby-van Swaay E, Yamanaka H, Greenberg JD
Pharmacoepidemiol Drug Saf. 2015 Nov; 24(11):1121-32

Does disease activity at start of biologic therapy influence work-loss in RA patients?
Olofsson T, Johansson K, Eriksson JK, van Vollenhoven R, Miller H, Petersson IF, Askling J, Neovius M,
Rheumatology (Oxford). 2015 Dec 18

Postmenopausal hormone therapy and the risk of rheumatoid arthritis: results from the Swedish EIRA population-based case-control study
Orellana C, Saevarsdottir S, Klareskog L, Karlson EW, Alfredsson L, Bengtsson C
Eur J Epidemiol. 2015 May; 30(5):449-57.

Parity influences the severity of ACPA-negative early rheumatoid arthritis: a cohort study based on the Swedish EIRA material
Pikwer M, Orellana C, Källberg H, Pikwer A, Turesson C, Klareskog L, Alfredsson L, Saevarsdottir S, Bengtsson C
Arthritis Res Ther. 2015 Dec 12; 17:358.

Consistency and utility of data items across European rheumatoid arthritis clinical cohorts and registers
Radner H, Dixon W, Hyrich K, Askling J
Arthritis Care Res (Hoboken). 2015 Apr 17

Recent infections are associated with decreased risk of rheumatoid arthritis: a population-based case-control study
Sandberg ME, Bengtsson C, Klareskog L, Alfredsson L, Saevarsdottir S
Ann Rheum Dis. 2015 May; 74(5):904-7

What is the impact of chronic systemic inflammation such as rheumatoid arthritis on mortality following cancer
Simard JF, Ekberg S, Johansson AL, Askling J
Ann Rheum Dis. 2015 May 6

Dilemmas of participation in everyday life in early rheumatoid arthritis: a qualitative interview study (The Swedish TIRA Project)
Sverker A, Östlund G, Thyberg M, Thyberg I, Valtersson E, Björk M
Disabil Rehabil. 2015; 37(14):1251-9

Do RA or TNF inhibitors increase the risk of cervical neoplasia or of recurrence of previous neoplasia? A nationwide study from Sweden
Wadström H, Frisell T, Sparén P, Askling J; ARTIS study group
Ann Rheum Dis. 2016 Jan 11

How good is the coverage and how accurate are exposure data in the Swedish Biologics Register (ARTIS)?
Wadström H, Eriksson JK, Neovius M, Askling J; ARTIS Study Group
Scand J Rheumatol. 2015; 44(1):22-8

Protective effect of HLA-DRB1*13 alleles during specific phases in the development of ACPA-positive RA
van Heemst J, Hensvold AH, Jiang X, van Steenbergen H, Klareskog L, Huizinga TW, van der Helm-van Mil A, Catrina AI, Toes RE, Lundberg K, van der Woude D
Ann Rheum Dis. 2015 Dec 29

Methodological challenges when comparing demographic and clinical characteristics of international observational registries
Verstappen SM, Askling J, Berglind N, Franzen S, Frisell T, Garwood C, Greenberg JD, Holmqvist M, Horne L, Lampl K, Michaud K, Nyberg F, Pappas DA, Reed G, Symmons DP, Tanaka E, Tran TN, Yamanaka H, Ho M
Arthritis Care Res (Hoboken). 2015 Jul 20

Lived Experiences of Sex Life Difficulties in Men and Women with Early RA – The Swedish TIRA Project
Östlund G, Björk M, Valtersson E, Sverker A
Musculoskeletal Care. 2015 Jun 5

Accelerating translational research by clinically driven development of an informatics platform-a case study.
Abugessaisa I, Saevarsdottir S, Tsipras G, et al.
PLoS One. 2014 Sep 9; 9(9):e104382.

Low-dose prednisolone treatment of early rheumatoid arthritis and late cardiovascular outcome and survival: 10-year follow-up of a 2-year randomized trial.
Ajeganova S, Svensson B, Hafström I; BARFOT Study Group.
BMJ Open. 2014 Apr 7; 4(4):e004259.

No association between rheumatoid arthritis, amyotrophic lateral sclerosis, and tumour necrosis factor inhibitor treatment.
Arkema EV, Feltelius N, et al.; on behalf of the ARTIS study group.
Ann Rheum Dis. 2014 Aug 5.

Are patients with rheumatoid arthritis still at an increased risk of tuberculosis and what is the role of biological treatments? 
Arkema EV, Jonsson J, Baecklund E, et al; on behalf of the ARTIS Study Group.
Ann Rheum Dis. 2014 Mar 7.

Thyroxin substitution and the risk of developing rheumatoid arthritis; results from the Swedish population-based EIRA study.
Bengtsson C, Padyukov L, Källberg H, et al.
Ann Rheum Dis. 2014 Jun; 73(6):1096-100.

A genome-wide association study of rheumatoid arthritis without antibodies against citrullinated peptides.
Bossini-Castillo L, de Kovel C, Kallberg H, et al.
Ann Rheum Dis. 2014 Feb 14.

Cost-effectiveness of a one-year coaching program for healthy physical activity in early rheumatoid arthritis.
Brodin N, Lohela-Karlsson M, Swärdh E, et al.
Disabil Rehabil. 2014 Jul 14:1-6.

Effectiveness of TNF inhibitor switch in RA: results from the national Swedish register. 
Chatzidionysiou K, Askling J, Eriksson J, et al; for the ARTIS group.
Ann Rheum Dis. 2014 Jan 15.

The influence of polygenic risk scores on heritability of anti-CCP level in RA. 
Cui J, Taylor KE, Lee YC, et al.
Genes Immun. 2014 Mar; 15(2):107-14.

”A gift from heaven” or ”This was not for me”. A mixed methods approach to describe experiences of participation in an outsourced physical activity program for persons with rheumatoid arthritis. 
Demmelmaier I, Lindkvist A, Nordgren B, et al.
Clin Rheumatol. 2014 Jun 20.

Review of 103 Swedish Healthcare Quality Registries.
Emilsson L, Lindahl B, Köster M, et al.
J Intern Med. 2014 Aug 31.

Cost-effectiveness of infliximab versus conventional combination treatment in methotrexate-refractory early rheumatoid arthritis: 2-year results of the register-enriched randomised controlled SWEFOT trial. 
Eriksson JK, Karlsson JA, Bratt J, et al.
Ann Rheum Dis. 2014 Apr 15.

The Swedish Rheumatology Quality Register: optimization of rheumatic disease assessments using register-enriched data. 
Eriksson JK, Askling J, Arkema EV.
Clin Exp Rheumatol. 2014 Nov-Dec; 32 Suppl 85(5):147-149.

Familial aggregation of arthritis-related diseases in seropositive and seronegative rheumatoid arthritis: a register-based case-control study in Sweden. 
Frisell T, Hellgren K, Alfredsson L, et al.
Ann Rheum Dis. 2014 Dec 12.

Rheumatoid factor and anti-CCP do not predict progressive joint damage in patients with early rheumatoid arthritis treated with prednisolone: a randomised study. 
Hafström I, Engvall IL, Rönnelid J, et al. the BARFOT study group.
BMJ Open. 2014 Jul 30; 4(7):e005246

Changes in sociodemographic characteristics at baseline in two Swedish cohorts of patients with early rheumatoid arthritis diagnosed 1996-98 and 2006-09. 
Hallert E, Husberg M, Kalkan A, et al.
Scand J Rheumatol. 2014 Oct 29:1-6.

Early rheumatoid arthritis 6 years after diagnosis is still associated with high direct costs and increasing loss of productivity: the Swedish TIRA project.
Hallert E, Husberg M, Kalkan A, et al.
Scand J Rheumatol. 2014; 43(3):177-83.

RF pretreatment multi-biomarker disease activity score and radiographic progression in early RA: results from the SWEFOT trial.
Hambardzumyan K, Bolce R, Saevarsdottir S, et al.
Ann Rheum Dis. 2014 May 8.

Fine mapping seronegative and seropositive rheumatoid arthritis to shared and distinct HLA alleles by adjusting for the effects of heterogeneity.
Han B, Diogo D, Eyre S,et al.
Am J Hum Genet. 2014 Apr 3; 94(4):522-32.

Ankylosing spondylitis, psoriatic arthritis, and risk of malignant lymphoma: a cohort study based on nationwide prospectively recorded data from Sweden. 
Hellgren K, Smedby KE, Backlin C, et al.
Arthritis Rheumatol. 2014 May; 66(5):1282-90.

Age at onset determines severity and choice of treatment in early rheumatoid arthritis: a prospective study. 
Innala L, Berglin E, Möller et al.
Arthritis Res Ther. 2014 Apr 14; 16(2):R94.

Anti-CarP antibodies in two large cohorts of patients with rheumatoid arthritis and their relationship to genetic risk factors, cigarette smoking and other autoantibodies.
Jiang X, Trouw LA, van Wesemael TJ, et al.
Ann Rheum Dis. 2014 Oct; 73(10):1761-8.

Smokeless tobacco (moist snuff) use and the risk of developing rheumatoid arthritis: Results from the Swedish Epidemiological Investigation of Rheumatoid Arthritis (EIRA) case-control study.
Jiang X, Alfredsson L, Klareskog L, et al.
Arthritis Care Res (Hoboken). 2014 Apr 9.

To which extent may the familial risk of rheumatoid arthritis be explained by established RA risk factors?
Jiang X, Frisell T, Askling J, et al.
Arthritis Rheumatol. 2014 Nov 24.

The risk of acute coronary syndrome in rheumatoid arthritis in relation to tumour necrosis factor inhibitors and the risk in the general population: a national cohort study.
Ljung L, Askling J, Rantapää-Dahlqvist S, et al.
Arthritis Res Ther. 2014 Jun 18; 16(3):R127.

Changes in the anticitrullinated peptide antibody response in relation to therapeutic outcome in early rheumatoid arthritis: results from the SWEFOT trial.
Kastbom A, Forslind K, Ernestam S, et al.
Ann Rheum Dis. 2014 Dec 30.

The EULAR Study Group for Registers and Observational Drug Studies: comparability of the patient case mix in the European biologic disease modifying anti-rheumatic drug registers.
Kearsley-Fleet L, Závada J, Hetland ML,et al.; on behalf of the EULAR Study Group for Registers and Observational Drug Studies.
Rheumatology (Oxford). 2014 Nov 27.

Treating to target with etanercept in rheumatoid arthritis: cost-effectiveness of dose reductions when remission is achieved. 
Kobelt G.
Value Health. 2014 Jul; 17(5):537-44.

Is swollen to tender joint count ratio a new and useful clinical marker for biologic drug response in rheumatoid arthritis? Results from a Swedish cohort. 
Kristensen LE, Bliddal H, Christensen R, et al.
Arthritis Care Res (Hoboken). 2014 Feb; 66(2):173-9.

GeMes, clusters of DNA methylation under genetic control, can inform genetic and epigenetic analysis of disease.
Liu Y, Li X, Aryee MJ,et al.
Am J Hum Genet. 2014 Apr 3; 94(4):485-95.

Fear-avoidance beliefs about physical activity in adults with rheumatoid arthritis. 
Lööf H, Demmelmaier I, Henriksson EW, et al.
Scand J Rheumatol. 2014 Sep 15:1-7.

Predictors of severe self-reported disability in RA in a long-term follow-up study.
Malm K, Bergman S, Andersson M, et al; the BARFOT study group.
Disabil Rehabil. 2014 Jul 18:1-6.

Who makes it to the base? Selection procedure for a physical activity trial targeting people with rheumatoid arthritis.
Nordgren B, Fridén C, Demmelmaier I, et al.
Arthritis Care Res (Hoboken). 2014 May; 66(5):662-70.

Criterion validation of two submaximal aerobic fitness tests, the self-monitoring Fox-walk test and the Åstrand cycle test in people with rheumatoid arthritis.
Nordgren B, Fridén C, Jansson E, et al.
BMC Musculoskelet Disord. 2014 Sep 17; 15:305.

An outsourced health-enhancing physical activity programme for people with rheumatoid arthritis: exploration of adherence and response.
Nordgren B, Fridén C, Demmelmaier I, et al.; the PARA Study Group.
Rheumatology (Oxford). 2014 Nov 27.

Genetics of rheumatoid arthritis contributes to biology and drug discovery.
Okada Y, Wu D, Trynka G, et al.
Nature. 2014 Feb 20; 506 (7488):376-81.

Parity and the risk of developing rheumatoid arthritis: results from the Swedish Epidemiological Investigation of Rheumatoid Arthritis study. 
Orellana C, Wedrén S, Källberg H, et al; EIRA Study Group.
Ann Rheum Dis. 2014 Apr; 73(4):752-5.

Emotions related to participation restrictions as experienced by patients with early rheumatoid arthritis: a qualitative interview study (the Swedish TIRA project).
Ostlund G, Björk M, Thyberg I, et al.
Clin Rheumatol. 2014 May 17.

TNF inhibitor therapy and risk of breast cancer recurrence in patients with rheumatoid arthritis: a nationwide cohort study.
Raaschou P, Frisell T, Askling J; for the ARTIS Study Group.
Ann Rheum Dis. 2014 Aug 8.

Circulating plasma levels of cathepsin S and L are not associated with disease severity in patients with rheumatoid arthritis.
Ruge T, Södergren A, Wållberg-Jonsson S et al.
Scand J Rheumatol. 2014; 43(5):371-3.

Current smoking status is a strong predictor of radiographic progression in early rheumatoid arthritis: results from the SWEFOT trial. 
Saevarsdottir S, Rezaei H, Geborek P, et al.; for the SWEFOT study group.
Ann Rheum Dis. 2014 Apr 4.

Overweight decreases the chance of achieving good response and low disease activity in early rheumatoid arthritis.
Sandberg ME, Bengtsson C, Källberg H, et al.
Ann Rheum Dis. 2014 May 12.

Patients with regular physical activity before onset of rheumatoid arthritis present with milder disease. 
Sandberg ME, Wedrén S, Klareskog L, et al.
Ann Rheum Dis. 2014 Aug; 73(8):1541-4.

Improved performance of epidemiologic and genetic risk models for rheumatoid arthritis serologic phenotypes using family history. 
Sparks JA, Chen CY, Jiang X, et al.
Ann Rheum Dis. 2014 Apr 30.

Early psoriatic arthritis: short symptom duration, male gender and preserved physical functioning at presentation predict favourable outcome at 5-year follow-up. Results from the Swedish Early Psoriatic Arthritis Register (SwePsA).
Theander E, Husmark T, Alenius GM,et al.
Ann Rheum Dis. 2014 Feb; 73(2):407-13.

Simplified bipartite concepts of functioning and disability recommended for interdisciplinary use of the ICF. 
Thyberg M, Arvidsson P, Thyberg I, et al.
Disabil Rehabil. 2014 Nov 3:1-10.

How good is the coverage and how accurate are exposure data in the Swedish Biologics Register (ARTIS)?
Wadström H, Eriksson J, Neovius M, et al., On Behalf Of The ARTIS Study Group.
Scand J Rheumatol. 2014 Nov 7:1-7.

Identification of anticitrullinated protein antibody reactivities in a subset of anti-CCP-negative rheumatoid arthritis: association with cigarette smoking and HLA-DRB1 ‘shared epitope’ alleles.
Wagner CA, Sokolove J, Lahey LJ, et al.
Ann Rheum Dis. 2014 Jan 16.

The Swedish e-Health Landscape Surrounding the SRQ Registry.
Elena Eftimovska.
Karolinska Institutet 2013.

Innovation as emergence in healthcare: unpacking change from within. 
Essén A, Lindblad S.
Soc Sci Med. 2013 Sep; 93:203-11.

The micro-macro level interplay in practice transformation: A case from the Swedish Rheumatology setting.
Essen A, Yakhlef A.
Working paper, 2013

The negotiation between multiple agencies in routine transformation: Towards a model of routines as institutionally embedded imbrications.
Essén, A, Värlander, S.
Submitted to MISC.

Co-production in Chronic Care: Exploitation or Empowerment? 
Essén, A & Värlander, S. (2012).
Conference paper accepted for publication at the Academy of Management conference 2012.

Enabling Uptake of a Registry-Supported Care and Learning System in the United States. A Report to the Robert Wood Johnson Foundation from Karolinska Institutet and the Dartmouth Institute. 2013
Nelson E, Eftimovska E, Lindblad S et al.

Continuous innovation: developing and using a clinical database with new technology for patient- centred care–the case of the swedish quality register for arthritis.
Ovretveit J, Keller C, Hvitfeldt Forsberg H, et al.
Int j qual health care. 2013 apr; 25(2):118-24. epub 2013 jan 29.

Implementation of the CDC translational informatics platform – from genetic variants to the national Swedish Rheumatology Quality Register.
Abugessaisa I, Gomez-Cabrero D, Snir O, et al.
J Transl Med. 2013 Apr 2;11:85.

Association of obesity with worse disease severity in rheumatoid arthritis as well as with comorbidities: a long-term followup from disease onset.
Ajeganova S, Andersson ML, Hafström I; BARFOT Study group
Arthritis Care Res (Hoboken). 2013 jan; 65(1):78-87.

Disease factors in early rheumatoid arthritis are associated with differential risks for cardiovascular events and mortality depending on age at onset: a 10-year observational cohort study.
Ajeganova S, Andersson ML, Frostegård J, et al.
J Rheumatol. 2013 Dec; 40(12):1958-66

BARFOT study group; the effect of snuff (smokeless tobacco) on disease activity and function in rheumatoid arthritis.
Andersson Ml, Bergman S, Söderlin MK
J clin rheumatol. 2013 jan.

Early increase in serum-comp is associated with joint damage progression over the first five years in patients with rheumatoid arthritis.
Andersson Ml, Svensson B, Petersson If, et al.
BMC musculoskelet disord. 2013 aug 2; 14:229.

Alcohol consumption is associated with lower self-reported disease activity and better health-related quality of life in female rheumatoid arthritis patients in sweden: data from BARFOT, a multicenter study on early RA.
Bergman S, Symeonidou S, Andersson Ml, et al.
BMC Musculoskelet Disord. 2013 jul24;14:218.

Rituximab versus anti-tnf in patients who previously failed one tnf inhibitor in an observational cohort.
Chatzidionysiou K, Van Vollenhoven R.
Scand j rheumatol. 2013 jan 3.

Genome-wide association study and gene expression analysis identifies CD84 as a predictor of response to Etanerecept therapy in rheumatoid arthritis.
Cui J, Stahl EA, Saevarsdottir S, et al.
PLoS Genet. 2013 Mar; 9(3)

Current and maintained health- enhancing physical activity in rheumatoid arthritis – the para 2010 study.
Demmelmaier I, Bergman P, Nordgren B, et al.
Arthritis Care Res (Hoboken). 2013; 65:1166-76

Cigarette smoking and smoking cessation in relation to risk of rheumatoid arthritis in women.
Di Giuseppe D, Orsini N, Alfredsson L, et al.
Arthritis Res Ther. 2013 Apr 22; 15(2):R56

A long-term intake of dietary long-chain n-3 polyunsaturated fatty acids and risk rheumatoid arthritis: a prospective cohort study of women.
Di Giuseppe D, Wallin A, Bottai M, et al.
Ann Rheum Dis. 2013 aug 12

Low-dose prednisolone in early rheumatoid arthritis inhibits collagen type I degradation by matrix metalloproteinases as assessed by serum 1CTP- -a possible mechanism for specific inhibition of radiological destruction.
Engvall IL, Svensson B, Boonen A, et al. Rheumatology (Oxford). 2013 Apr; 52(4):733-42

Incidence of rheumatoid arthritis in sweden: a nationwide population-based assessment of incidence, its determinants, and treatment penetration
Eriksson Jk, Neovius M, Ernestam S, et al.
Arthritis Care Res (Hoboken). 2013 jun; 65(6):870-8.

Biologic versus conventional combination treatment and work loss in early rheumatoid arthritis: a randomized trial.
Eriksson J, Neovius M, Bratt J, et al.
Jama intern med. 2013 jul 1.

Costs for hospital care, drugs and lost work days in incident and prevalent rheumatoid arthritis: how large, and how are they distributed?
Eriksson JK, Johansson K, Askling J, et al.
Ann Rheum Dis. 2013 Dec 9.

Familial risks and heritability of ra in relation to rf/acpa status, number and type of affected relatives, sex, and age.
Frisell T, Holmqvist M, Källberg H, et al.
Arthritis rheum. 2013 jul 29.

Environmental and genetic factors in the development of anticitrullinated protein antibodies (ACPAs) and ACPA-positive rheumatoid arthritis: an epidemiological investigation in twins.
Haj Hensvold A, Magnusson PK, Joshua V, et al.
Ann Rheum Dis. 2013 Nov 25. doi: 10.1136/annrheumdis-2013-203947.

Early rheumatoid arthritis 6 years after diagnosis is still associated with high direct costs and increasing loss of productivity: the Swedish TIRA project.
Hallert E, Husberg M, Kalkan A, et al.
Scand J Rheumatol. 2013 Dec 19

Occurrence and relative risk of stroke in incident and prevalent contemporary rheumatoid arthritis;
Holmqvist M, Gränsmark E, Mantel A, et al.
Ann Rheum Dis. 2013 apr; 72(4):541-6.

Addition of infliximab compared with addition of sulfasalazine and hydroxychloroquine to methotrexate in early rheumatoid arthritis: 2-year quality-of-life results of the randomised, controlled, SWEFOT trial.
Karlsson JA, Neovius M, Nilsson JÅ, et al.
Ann Rheum Dis. 2013 Dec; 72(12):1927-33.

The comparison of trial data-based and registry data-based cost-effectiveness of infliximab treatment for rheumatoid arthritis in sweden using a modeling approach.
Lekander I, Kobelt G, Svarvar P, et al.
Value health. 2013 mar-apr; 16(2):251-8.

For the artis study group. drug survival on tnf inhibitors in patients with rheumatoid arthritis comparison of adalimumab, etanercept and infliximab.
Neovius M, Arkema Ev, Olsson H, et al.
Ann Rheum Dis. 2013 nov 27

Para study group. Who makes it to the base? Selection procedure for a physical activity trial targeting people with ra.
Nordgren B, Fridén C, Demmelmaier I, et al.
Arthritis care res (hoboken), Arthritis care res (Hoboken). 2013 oct 7

Uk primary sjögren’s syndrome registry, eloranta ml, syvänen ac. association of genes in the nf-κb pathway with antibody positive primary sjögren’s syndrome.
Nordmark G, Wang C, Vasaitis L, et al.
Scand j immunol 2013 aug 14

For the artis study group. predictors of work disability during the first 3 years after diagnosis in a national rheumatoid arthritis inception cohort.
Olofsson T, Petersson If, Eriksson J, et al.
Ann Rheum Dis. 2013 mars 21.

Rheumatoid arthritis, anti-tumour necrosis factor therapy, and risk of malignant melanoma: nationwide population based prospective cohort study from sweden.
Raaschou P, Simard Jf, Holmqvist M, et al.
Bmj. 2013 apr 8; 346:f1939.

Evaluation of hand bone loss by digital X-ray radiogrammetry as a complement to clinical and radiographic assessment in early rheumatoid arthritis: results from the SWEFOT trial.
Rezaei H, Saevarsdottir S, Geborek P, et al.
BMC Musculoskelet Disord. 2013 Mar 5; 14:79

Smoking in combination with antibodies to cyclic citrullinated peptides is associated with persistently high levels of survivin in early rheumatoid arthritis: a prospective cohort study.
Svensson B, Hafström I, Erlandsson MC, et al.
Arthritis Res Ther. 2014 Jan 16; 16(1):R12

Long-term sustained remission in a cohort study of patients with rheumatoid arthritis: choice of remission criteria.
Svensson B, Andersson ML, Bala SV, et al.
BMJ Open. 2013 Sep 10; 3(9):e003554

Participation in work in early rheumatoid arthritis: a qualitative interview study interpreted in terms of the icf.
Sverker A, Östlund G, Thyberg M, et al.
Disabil rehabil. 2013 may 3.

second-hand exposure to tobacco smoke and its effect on disease activity in swedish rheumatoid arthritis patients. Data from barfot, a multicentre study of ra
Söderlin MK, Andersson M, Bergman S
Clin exp rheumatol. 2013 jan-feb; 31(1):122-4.

Early psoriatic arthritis: short symptom duration, male gender and preserved physical functioning at presentation predict favourable outcome at 5-year follow-up. Results from the Swedish Early Psoriatic Arthritis Register (SwePsA)
Theander E, Husmark T, Alenius GM, et al.
Ann Rheum Dis. 2013 Jan 25.

Genome-wide association analysis of anti-tnf drug response in patients with rheumatoid arthritis.
Umiċeviċ Mirkov M, Cui J, Vermeulen sh, et al.
Ann Rheum Dis. 2013 aug; 72(8):1375-81.