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Updated: Jun 7, 2026
Erosion Identification in Metacarpophalangeal Joints in Rheumatoid Arthritis using High-Resolution Peripheral Quantitative Computed Tomography
Published on: October 6, 2023
The incidence of gastrointestinal perforations among rheumatoid arthritis patients
Jeffrey R Curtis1, Fenglong Xie, Lang Chen
1University of Alabama at Birmingham, Birmingham, AL 35294, USA. jcurtis@uab.edu
Objective:
Gastrointestinal (GI) perforation has emerged as a novel safety concern in relation to medications used to treat rheumatoid arthritis (RA). This study was undertaken to characterize the incidence and risk factors for GI perforation in RA patients.
Methods:
Using administrative databases of a large US health plan, we identified RA patients treated with biologic agents, methotrexate (MTX), oral glucocorticoids, and nonsteroidal antiinflammatory drugs (NSAIDs). Additional risk factors we evaluated included diverticulitis. Hospitalization with GI perforation was identified using a validated algorithm. Incidence rates and risk factors were evaluated using Cox proportional hazards models.
Results:
Among 40,841 RA patients, 37 hospitalizations with GI perforation were identified. The rate of GI perforation among patients currently being treated with biologic agents who were also receiving oral glucocorticoids was higher (1.12 per 1,000 person-years [95% confidence interval (95% CI) 0.50-2.49]) than for patients being treated with biologic agents who were not also receiving glucocorticoids (0.47 per 1,000 person-years [95% CI 0.22-0.98]) or for patients being treated with MTX who were also receiving glucocorticoids (0.87 per 1,000 person-years [95% CI 0.36-2.10]). Neither biologic agents nor MTX was significantly associated with GI perforation, in contrast to current treatment with glucocorticoids and NSAIDs together (hazard ratio 4.7 [95% CI 1.9-12.0]) or glucocorticoids alone (hazard ratio 2.8 [95% CI 1.3-6.1]). Diverticulitis also was a strong risk factor (hazard ratio 9.1 [95% CI 3.1-26.4]). Seventy percent of patients with GI perforation received glucocorticoids, had antecedent diverticulitis, or both.
Conclusion:
GI perforation is an uncommon but serious adverse event among RA patients. Because a majority of patients with GI perforation were being treated with glucocorticoids or had previously experienced diverticulitis, these individuals should be considered at higher risk.
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