Table 2 Incidence of RA in the study group.

From: Influence of Helicobacter pylori infection on risk of rheumatoid arthritis: a nationwide population-based study

 

After propensity score matching

Control (n = 97,533)

H. pylori-infected group (n = 97,533)

Follow-up person months

11,961,822

12,290,765

New case

1061

1574

Incidence ratea (95% CI)

0.89 (0.84–0.94)

1.28 (1.22–1.35)

Crude relative risk (95% CI)

Reference

1.44 (1.33–1.56)

aHRb (95% CI)

Reference

1.45 (1.34–1.56)

  1. aIncidence rate, per 10,000 person months.
  2. baHR, adjusted hazard ratio, the demographic variables (such as sex, age, urbanization, insurance property), and comorbidities were included in the multiple Cox regression.
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