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Cited by 302

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Anti–tumor necrosis factor α therapy and the risk of serious bacterial infections in elderly patients with rheumatoid arthritis

Schneeweiss, Sebastian, Setoguchi, Soko, Weinblatt, Michael E., Katz, Jeffrey N., Avorn, Jerry, Sax, Paul E., Levin, Raisa, Solomon, Daniel H.·2007·Arthritis & Rheumatism

Abstract

Objective: To assess the association between the initiation of anti–tumor necrosis factor α (anti‐TNFα) therapy and the risk of serious bacterial infections in routine care. Methods: This was a cohort study of patients with rheumatoid arthritis (RA) in whom specific disease‐modifying antirheumatic drugs (DMARDs) were initiated. Patients were Medicare beneficiaries ages 65 years and older (mean age 76.5 years) who were concurrently enrolled in the Pharmaceutical Assistance Contract for the Elderly provided by the state of Pennsylvania. A total of 15,597 RA patients in whom a DMARD was initiated between January 1, 1995 and December 31, 2003 were identified using linked data on all prescription drug dispensings, physician services, and hospitalizations. Initiation of anti‐TNFα therapy, cytotoxic agents other than methotrexate (MTX), noncytotoxic agents, and glucocorticoids was compared with initiation of MTX. The main outcome measure was serious bacterial infections that required hospitalization. Results: The incidence of serious bacterial infections was, on average, 2.2 per 100 patient‐years in this population (95% confidence interval [95% CI] 2.0–2.4). Glucocorticoid use doubled the rate of serious bacterial infections as compared with MTX use, independent of previous DMARD use (rate ratio [RR] 2.1 [95% CI 1.5–3.1]), with a clear dose‐response relationship for dosages >5 mg/day (for ≤5 mg/day, RR 1.34; for 6–9 mg/day, RR 1.53; for 10–19 mg/day, RR 2.97; and for ≥20 mg/day, RR 5.48 [P for trend < 0.0001]). Adjusted models showed no increase in the rate of serious infections among initiators of anti‐TNFα therapy (RR 1.0 [95% CI 0.6–1.7]) or other DMARDs as compared with initiators of MTX. Conclusion: In a large cohort of patients with RA, we found no increase in serious bacterial infections among users of anti‐TNFα therapy compared with users of MTX. Glucocorticoid use was associated with a dose‐dependent increase in such infections.

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Metadata

Authors
Schneeweiss, S., Setoguchi, S., Weinblatt, M. E., Katz, J. N., Avorn, J., Sax, P. E., Levin, R., & Solomon, D. H.
Venue
Arthritis & Rheumatism
Publisher
Wiley
Published
2007-05-25
Volume
56
Issue
6
Pages
1754-1764
ISSN
  • 0004-3591 (ISSN-L)
  • 1529-0131
OpenAlex
W1984181327
Cited by
302
References
3
FWCI
19.44
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Anti–tumor necrosis factor α therapy and the risk of serious bacterial infections in elderly patients with rheumatoid arthritis. https://app.cochat.ai/papers/10.1002/art.22600
The paper
Schneeweiss, S., Setoguchi, S., Weinblatt, M. E., Katz, J. N., Avorn, J., Sax, P. E., Levin, R., & Solomon, D. H. (2007). Anti–tumor necrosis factor α therapy and the risk of serious bacterial infections in elderly patients with rheumatoid arthritis. Arthritis & Rheumatism. https://doi.org/10.1002/art.22600

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