期刊
ARTHRITIS CARE & RESEARCH
卷 65, 期 7, 页码 1085-1094出版社
WILEY
DOI: 10.1002/acr.21937
关键词
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类别
资金
- Food and Drug Administration
- NIH [T32-GM-007569, AR-053351, P60-AR-56116]
- Vanderbilt Physician Scientist Development Award
- Agency for Healthcare Research and Quality [U18-HS017919, R01-HS018517]
- Abbott
- Crescendo
- Pfizer
- BMS
- Amgen
- Centocor
- Consortium of Rheumatology Researchers of North America
- Roche/Genentech
- UCB
- Lilly
- Proctor Gamble
- Genentech
- Scimetrika
- Rocky Mountain Poison and Drug Center
- McNeil
ObjectiveWe tested the hypothesis that initiation of tumor necrosis factor (TNF) antagonists reduced the risk of fractures compared to nonbiologic comparators in patients with autoimmune diseases. MethodsUsing 4 large administrative databases, we assembled retrospective cohorts of patients with autoimmune diseases who initiated either a TNF antagonist or a nonbiologic medication. We identified 3 mutually exclusive disease groups: rheumatoid arthritis (RA), inflammatory bowel disease (IBD), and a combined group: psoriasis (PsO), psoriatic arthritis (PsA), or ankylosing spondylitis (AS). We used baseline covariate data to calculate propensity scores (PS) for each disease group and used Cox regression to calculate hazard ratios (HRs) and 95% confidence intervals (95% CIs). We compared the risk of combined hip, radius/ulna, humerus, or pelvic fractures between PS-matched cohorts of new users of TNF antagonists and nonbiologic comparators. ResultsWe identified 9,020, 2,014, and 2,663 new PS-matched episodes of TNF antagonist and nonbiologic comparator use in RA, IBD, and PsO-PsA-AS cohorts, respectively. The risk of combined fractures was similar between new users of TNF antagonists and nonbiologic comparators for each disease (HR 1.17, 95% CI 0.91-1.51; HR 1.49, 95% CI 0.72-3.11; and HR 0.92, 95% CI 0.47-1.82 for RA, IBD, and PsO-PsA-AS, respectively). In RA, the risk of combined fractures was associated with an average daily dosage of prednisone equivalents >10 mg/day at baseline compared with no glucocorticoid (HR 1.54, 95% CI 1.03-2.30). ConclusionThe risk of fractures did not differ between initiators of a biologic agent and a nonbiologic comparator for any disease studied. Among RA patients, use of >10 mg/day of prednisone equivalents at baseline increased the fracture risk.
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