Askling J, Fored CM, Geborek P, Jacobsson LT, van Vollenhoven R, Feltelius N, Lindblad S, Klareskog L: Swedish registers to examine drug safety and clinical issues in RA. Ann Rheum Dis. 2006, 65 (6): 707-712. 10.1136/ard.2005.045872.
Article
CAS
PubMed
PubMed Central
Google Scholar
Eriksson JK, Neovius M, Ernestam S, Lindblad S, Simard JF, Askling J: Incidence of rheumatoid arthritis in Sweden: a nationwide population-based assessment of incidence, its determinants, and treatment penetration. Arthritis Care Res. 2013, 65 (6): 870-878. 10.1002/acr.21900.
Article
Google Scholar
Neovius M, Simard J, Sundstrom A, Jacobsson L, Geborek P, Saxne T, Feltelius N, Klareskog L, Askling J, Group AS: Generalisability of clinical registers used for drug safety and comparative effectiveness research: coverage of the Swedish Biologics Register. Ann Rheum Dis. 2011, 70 (3): 516-519. 10.1136/ard.2010.130914.
Article
CAS
PubMed
Google Scholar
Neovius M, Simard JF, Askling J: group As: Nationwide prevalence of rheumatoid arthritis and penetration of disease-modifying drugs in Sweden. Ann Rheum Dis. 2011, 70 (4): 624-629. 10.1136/ard.2010.133371.
Article
PubMed
Google Scholar
Neovius M, Sundstrom A, Simard J, Wettermark B, Cars T, Feltelius N, Askling J, Klareskog L, Group AS: Small-area variations in sales of TNF inhibitors in Sweden between 2000 and 2009. Scand J Rheumatol. 2011, 40 (1): 8-15. 10.3109/03009742.2010.493895.
Article
CAS
PubMed
Google Scholar
Askling J, Baecklund E, Granath F, Geborek P, Fored M, Backlin C, Bertilsson L, Coster L, Jacobsson LT, Lindblad S, Lysholm J, Rantapää-Dahlqvist S, Saxne T, van Vollenhoven R, Klareskog L, Feltelius N: Anti-tumour necrosis factor therapy in rheumatoid arthritis and risk of malignant lymphomas: relative risks and time trends in the Swedish Biologics Register. Ann Rheum Dis. 2009, 68 (5): 648-653. 10.1136/ard.2007.085852.
Article
CAS
PubMed
Google Scholar
Askling J, Dixon W: The safety of anti-tumour necrosis factor therapy in rheumatoid arthritis. Curr Opin Rheumatol. 2008, 20 (2): 138-144. 10.1097/BOR.0b013e3282f4b392.
Article
CAS
PubMed
Google Scholar
Askling J, Dixon W: Influence of biological agents on cardiovascular disease in rheumatoid arthritis. Ann Rheum Dis. 2011, 70 (4): 561-562. 10.1136/ard.2010.142174.
Article
PubMed
Google Scholar
Askling J, Fored CM, Brandt L, Baecklund E, Bertilsson L, Feltelius N, Coster L, Geborek P, Jacobsson LT, Lindblad S, Lysholm J, Rantapää-Dahlqvist S, Saxne T, van Vollenhoven RF, Klareskog L: Time-dependent increase in risk of hospitalisation with infection among Swedish RA patients treated with TNF antagonists. Ann Rheum Dis. 2007, 66 (10): 1339-1344. 10.1136/ard.2006.062760.
Article
PubMed
PubMed Central
Google Scholar
Askling J, van Vollenhoven RF, Granath F, Raaschou P, Fored CM, Baecklund E, Dackhammar C, Feltelius N, Coster L, Geborek P, Jacobsson LT, Lindblad S, Rantapää-Dahlqvist S, Saxne T, Klareskog L: Cancer risk in patients with rheumatoid arthritis treated with anti-tumor necrosis factor alpha therapies: does the risk change with the time since start of treatment?. Arthritis Rheum. 2009, 60 (11): 3180-3189. 10.1002/art.24941.
Article
CAS
PubMed
Google Scholar
Raaschou P, Simard JF, Holmqvist M, Askling J, Group AS: Rheumatoid arthritis, anti-tumour necrosis factor therapy, and risk of malignant melanoma: nationwide population based prospective cohort study from Sweden. BMJ. 2013, 346: f1939-10.1136/bmj.f1939.
Article
PubMed
Google Scholar
Raaschou P, Simard JF, Neovius M, Askling J, Anti-Rheumatic Therapy in Sweden Study G: Does cancer that occurs during or after anti-tumor necrosis factor therapy have a worse prognosis? A national assessment of overall and site-specific cancer survival in rheumatoid arthritis patients treated with biologic agents. Arthritis Rheum. 2011, 63 (7): 1812-1822. 10.1002/art.30247.
Article
CAS
PubMed
Google Scholar
Simard JF, Neovius M, Askling J, Group AS: Mortality rates in patients with rheumatoid arthritis treated with tumor necrosis factor inhibitors: drug-specific comparisons in the Swedish Biologics Register. Arthritis Rheum. 2012, 64 (11): 3502-3510. 10.1002/art.34582.
Article
CAS
PubMed
Google Scholar
Baecklund E, Iliadou A, Askling J, Ekbom A, Backlin C, Granath F, Catrina AI, Rosenquist R, Feltelius N, Sundstrom C, Klareskog L: Association of chronic inflammation, not its treatment, with increased lymphoma risk in rheumatoid arthritis. Arthritis Rheum. 2006, 54 (3): 692-701. 10.1002/art.21675.
Article
PubMed
Google Scholar
Knight A, Sandin S, Askling J: Increased risk of autoimmune disease in families with Wegener's granulomatosis. J Rheumatol. 2010, 37 (12): 2553-2558. 10.3899/jrheum.091280.
Article
PubMed
Google Scholar
Ludvigsson JF, Andersson E, Ekbom A, Feychting M, Kim JL, Reuterwall C, Heurgren M, Olausson PO: External review and validation of the Swedish national inpatient register. BMC Public Health. 2011, 11: 450-10.1186/1471-2458-11-450.
Article
PubMed
PubMed Central
Google Scholar
Socialstyrelsen: Kodningskvalitet i patientregistret – Ett nytt verktyg för att mäta kvalitet. 2013, [http://www.socialstyrelsen.se/publikationer2013/2013-3-10]
Google Scholar
Aletaha D, Neogi T, Silman AJ, Funovits J, Felson DT, Bingham CO, Birnbaum NS, Burmester GR, Bykerk VP, Cohen MD, Combe B, Costenbader KH, Dougados M, Emery P, Ferraccioli G, Hazes JM, Hobbs K, Huizinga TW, Kavanaugh A, Kay J, Kvien TK, Laing T, Mease P, Ménard HA, Moreland LW, Naden RL, Pincus T, Smolen JS, Stanislawska-Biernat E, Symmons D, et al: 2010 Rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Arthritis Rheum. 2010, 62 (9): 2569-2581. 10.1002/art.27584.
Article
PubMed
Google Scholar
Arnett FC, Edworthy SM, Bloch DA, McShane DJ, Fries JF, Cooper NS, Healey LA, Kaplan SR, Liang MH, Luthra HS, Medsger TA, Mitchell DM, Neustadt DH, Pinals RS, Schaller JG, Sharp JT, Wilder RL, Hunder GG: The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum. 1988, 31 (3): 315-324. 10.1002/art.1780310302.
Article
CAS
PubMed
Google Scholar
Biliavska I, Stamm TA, Martinez-Avila J, Huizinga TW, Landewe RB, Steiner G, Aletaha D, Smolen JS, Machold KP: Application of the 2010 ACR/EULAR classification criteria in patients with very early inflammatory arthritis: analysis of sensitivity, specificity and predictive values in the SAVE study cohort. Ann Rheum Dis. 2013, 72 (8): 1335-1341. 10.1136/annrheumdis-2012-201909.
Article
PubMed
Google Scholar
Thomas SL, Edwards CJ, Smeeth L, Cooper C, Hall AJ: How accurate are diagnoses for rheumatoid arthritis and juvenile idiopathic arthritis in the general practice research database?. Arthritis Rheum. 2008, 59 (9): 1314-1321. 10.1002/art.24015.
Article
CAS
PubMed
Google Scholar
Widdifield J, Bernatsky S, Paterson JM, Tu K, Ng R, Thorne JC, Pope JE, Bombardier C: Accuracy of Canadian health administrative databases in identifying patients with rheumatoid arthritis: a validation study using the medical records of rheumatologists. Arthritis Care Res. 2013, 65 (10): 1582-1591.
Google Scholar
Widdifield J, Bombardier C, Bernatsky S, Paterson JM, Green D, Young J, Ivers N, Butt DA, Jaakkimainen RL, Thorne JC, Tu K: An administrative data validation study of the accuracy of algorithms for identifying rheumatoid arthritis: the influence of the reference standard on algorithm performance. BMC Musculoskelet Disord. 2014, 15: 216-10.1186/1471-2474-15-216.
Article
PubMed
PubMed Central
Google Scholar
Pedersen M, Klarlund M, Jacobsen S, Svendsen AJ, Frisch M: Validity of rheumatoid arthritis diagnoses in the Danish National Patient Registry. Eur J Epidemiol. 2004, 19 (12): 1097-1103. 10.1007/s10654-004-1025-0.
Article
PubMed
Google Scholar