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. 2023 Oct 9;6(10):e2337020. doi: 10.1001/jamanetworkopen.2023.37020

Table 2. Incidence of Venous Thromboembolism Among Individuals With IMIDs and Matched Controls Within 6 Months and 12 Months of COVID-19 Diagnosis.

IMID People with an IMID Matched people without an IMID
Crude IR per 100 000 PD (95% CI) Standardized IR per 100 000 PD (95% CI) Crude IR per 100 000 PD (95% CI) Standardized IR per 100 000 PD (95% CI)
Events within 6 mo of COVID-19 diagnosis
Any IMID 3.72 (3.17-4.35) 2.64 (2.23-3.10) 2.77 (2.54-3.02) 2.18 (1.99-2.38)
Ankylosing spondylitis 2.72 (1.00-5.93) 2.34 (0.81-5.27) 3.38 (2.34-4.72) 2.84 (1.88-4.10)
Inflammatory bowel disease 1.84 (0.95-3.21) 1.70 (0.78-3.21) 2.21 (1.71-2.81) 2.17 (1.58-2.91)
Crohn disease 2.86 (1.23-5.63) 3.54 (0.99-8.96) 1.94 (1.25-2.86) 2.69 (1.24-5.08)
Ulcerative colitis 1.16 (0.32-2.98) 0.79 (0.21-2.04) 2.55 (1.82-3.47) 2.20 (1.46-3.19)
Multiple sclerosis 3.03 (1.38-5.75) 3.03 (1.06-6.77) 2.14 (1.43-3.07) 1.77 (1.12-2.67)
Psoriasis 2.93 (2.16-3.88) 2.24 (1.63-3.00) 2.94 (2.57-3.36) 2.24 (1.94-2.58)
Psoriatic arthritis 4.06 (1.63-8.36) 5.71 (2.57-10.96) 2.19 (1.28-3.51) 1.29 (0.74-2.10)
Polymyalgia rheumatica 6.48 (2.10-15.12) 1.13 (0.26-3.14) 3.94 (1.97-7.06) 0.85 (0.36-1.68)
Rheumatoid arthritis 6.47 (4.91-8.36) 2.89 (0.91-6.85) 3.29 (2.75-3.92) 2.20 (1.76-2.71)
Systemic autoimmune rheumatic disease 6.06 (3.84-9.10) 6.73 (3.13-12.62) 2.07 (1.45-2.86) 1.75 (1.05-2.74)
Uveitis 4.20 (2.53-6.56) 2.91 (1.65-4.75) 2.97 (2.25-3.84) 1.78 (1.34-2.33)
Events within 12 mo of COVID-19 diagnosis
Any IMID 2.60 (2.24-2.99) 1.82 (1.56-2.11) 1.79 (1.65-1.94) 1.37 (1.25-1.49)
Ankylosing spondylitis 2.14 (0.92-4.21) 1.79 (0.71-3.70) 2.03 (1.41-2.82) 1.66 (1.11-2.38)
Inflammatory bowel disease 1.56 (0.91-2.50) 1.48 (0.80-2.50) 1.47 (1.16-1.85) 1.43 (1.06-1.89)
Crohn disease 2.19 (1.05-4.02) 2.56 (0.82-6.02) 1.36 (0.91-1.96) 1.95 (0.87-3.74)
Ulcerative colitis 1.21 (0.48-2.48) 0.99 (0.38-2.10) 1.65 (1.20-2.22) 1.42 (0.96-2.02)
Multiple sclerosis 2.57 (1.37-4.39) 2.96 (1.22-6.00) 1.42 (0.98-1.99) 1.13 (0.74-1.66)
Psoriasis 2.17 (1.66-2.79) 1.61 (1.21-2.09) 1.91 (1.68-2.17) 1.41 (1.23-1.61)
Psoriatic arthritis 3.06 (1.40-5.81) 4.33 (1.47-9.84) 1.50 (0.92-2.32) 1.02 (0.59-1.64)
Polymyalgia rheumatica 5.07 (2.04-10.45) 4.29 (0.38-17.19) 2.38 (1.23-4.15) 0.53 (0.24-1.01)
Rheumatoid arthritis 4.06 (3.13-5.18) 2.02 (0.80-4.21) 2.09 (1.76-2.46) 1.37 (1.11-1.67)
Systemic autoimmune rheumatic disease 3.66 (2.35-5.45) 4.10 (1.82-7.92) 1.38 (1.00-1.87) 1.16 (0.73-1.75)
Uveitis 2.80 (1.75-4.23) 1.90 (1.12-3.01) 1.96 (1.52-2.48) 1.11 (0.85-1.43)

Abbreviations: IMID, immune-mediated inflammatory disease; IR, incidence rate; PD, person-days.