Use of statins is associated with an increased risk of rheumatoid arthritis

H. J. I. de Jong, O. H. Klungel*, L. van Dijk, R. J. Vandebriel, H. G. M. Leufkens, J. W. van der Laan, J. W. Cohen Tervaert, H. van Loveren

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Objectives Statins offer significant cardiovascular benefits. Their use, however, influences immune regulation, which may potentially facilitate autoimmunity, eventually resulting in autoimmune diseases such as rheumatoid arthritis (RA). The authors studied whether statin use was associated with an increased risk of developing RA by conducting a case-control study using the Netherlands Information Network of General Practice database. Methods The authors identified 508 patients aged 40 years or older with a first-time diagnosis of RA in the period 2001-2006. Each RA case was matched to five controls for age, sex and index date, which was selected 1 year before the first diagnosis of RA. Odds ratios for the first-time diagnosis of RA were verified by a referral to a rheumatologist and/or at least one prescription of disease-modifying anti-rheumatic drugs and/or two prescriptions of corticosteroids after the date of first diagnosis. Results Cases were more often users of statins (15.9%) compared to controls (8.6%). After adjustment for cardiovascular risk factors and use of comedication, statin use was associated with an increased risk of incident RA (adjusted OR, 1.71 (95% CI 1.16 to 2.53); p=0.007). A consistent trend of increasing risk with increased cumulative duration, cumulative defined daily doses and number of prescriptions was not observed. However, a small trend between the potency of statin treatment and the risk of RA was found. Conclusions Statin use seems to be associated with an increased risk of developing RA. Our findings should be replicated by additional studies.
Original languageEnglish
Pages (from-to)648-654
JournalAnnals of the Rheumatic Diseases
Volume71
Issue number5
DOIs
Publication statusPublished - May 2012

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