Table 2.
Comparison of age‐ and sex‐standardized incidence and prevalence of psychiatric disorders between rheumatoid arthritis and matched cohorts in 2011a
| Incidence | Lifetime prevalence | Annual period prevalence | |
|---|---|---|---|
| Depression | 1.71 (1.15–2.55) | 1.48 (1.35–1.64) | 1.66 (1.36–2.02) |
| Anxiety disorder | 1.21 (0.82–1.79) | 1.25 (1.13–1.37) | 1.63 (1.22–2.19) |
| Bipolar disorder | 1.30 (063–2.68) | 1.30 (1.10–1.53) | 1.19 (0.80–1.78) |
| Schizophrenia | 0.97 (0.62–1.52)b | 1.10 (0.71–1.70) | 0.71 (0.41–1.26) |
a
Values are the rate ratios (95% confidence intervals).
b
Average annual incidence over study period due to small cell sizes in a single year.