TABLE 2.
Crude incidence of IS and all‐cause mortality in the overall cohort before propensity score matching according to the presence of MHCs
| Clinical condition | ISs (n) | Deaths (n) | Proportion of patients with IS | Proportion of died patients | P‐years until IS | P‐years until death | Incidence of IS (per 1000 p‐years) | Mortality (per 1000 p‐years) | Unadjusted IRR of IS | Unadjusted MRR |
|---|---|---|---|---|---|---|---|---|---|---|
| No MHC | 12,810 | 48,773 | 7.8% | 29.7% | 691,456 | 718,613 | 18.5 (18.2–18.9) | 67.9 (67.3–68.5) | (Reference) | (Reference) |
| Any MHC | 3462 | 14,647 | 8.9% | 37.6% | 151,846 | 159,190 | 22.8 (22.1–23.6) | 92.0 (90.5–93.5) | 1.23 (1.19–1.28) | 1.36 (1.33–1.38) |
| Depression | 584 | 2578 | 6.5% | 28.7% | 30,060 | 31,200 | 19.4 (17.9–21.1) | 82.6 (79.5–85.9) | 1.05 (0.97–1.14) | 1.22 (1.17–1.27) |
| Bipolar disorder | 62 | 219 | 6.6% | 23.5% | 3396 | 3563 | 18.3 (14.2–23.4) | 61.5 (53.8–70.2) | 0.99 (0.77–1.27) | 0.91 (0.79–1.03) |
| Anxiety disorder | 184 | 756 | 5.0% | 20.5% | 12,147 | 12,496 | 15.1 (13.1–17.5) | 60.5 (56.3–65.0) | 0.82 (0.71–0.95) | 0.89 (0.83–0.96) |
| Schizophrenia | 90 | 612 | 6.8% | 46.0% | 4054 | 4171 | 22.2 (18.1–27.3) | 146.7 (135.5–158.8) | 1.20 (0.97–1.47) | 2.16 (2.00–2.34) |
Note: 95% confidence intervals in parenthesis. IRRs and MRRs estimated by Poisson regression. 95% confidence intervals in parenthesis.
Abbreviations: IRR, incidence rate ratio; IS, ischaemic stroke; MHC, mental health condition; MRR, mortality rate ratio; p‐year, patient year.