Table 2.
Incidence and hazard ratio of recurrent ischemic stroke and mortality in stroke classes.
| No. of events | No. of events/1000 person years | Model 1 |
Model 2 |
|||
|---|---|---|---|---|---|---|
| Hazard ratio | 95% CI | Hazard ratio | 95% CI | |||
| Recurrent ischemic stroke | ||||||
| Reference (n = 828) | 30 | 2.9 | ref | / | ref | / |
| Symptomatic cerebrovascular disease (n = 204) | 29 | 13.9 | 4.2 | 2.5–7.1 | 3.9 | 2.3–6.6 |
| Covert vascular lesions (n = 156) | 15 | 9.6 | 2.7 | 1.4–5.1 | 2.5 | 1.3–4.8 |
| Imaging negative ischemia (n = 90) | 8 | 8.2 | 2.5 | 1.1–5.6 | 2.4 | 1.1–5.5 |
| Vascular mortality | ||||||
| Reference (n = 828) | 72 | 6.9 | ref | / | ref | / |
| Symptomatic cerebrovascular disease (n = 204) | 45 | 20.2 | 2.3 | 1.6–3.4 | 2.2 | 1.5–3.2 |
| Covert vascular lesions (n = 156) | 44 | 26.4 | 2.6 | 1.7–3.8 | 2.3 | 1.5–3.4 |
| Imaging negative ischemia (n = 90) | 15 | 14.3 | 1.7 | 1.0–3.1 | 1.7 | 0.9–3.0 |
| Non-vascular mortality | ||||||
| Reference (n = 828) | 104 | 10.0 | ref | / | ref | / |
| Symptomatic cerebrovascular disease (n = 204) | 36 | 16.1 | 1.3 | 0.9–1.9 | 1.2 | 0.8–1.8 |
| Covert vascular lesions (n = 156) | 25 | 15.0 | 1.0 | 0.7–1.6 | 1.0 | 0.6–1.5 |
| Imaging negative ischemia (n = 90) | 6 | 5.7 | 0.5 | 0.2–1.1 | 0.5 | 0.2–1.1 |
Model 1: adjusted for age and sex; Model 2: adjusted for hypertension, hypercholesterolemia, use of anticoagulant or antiplatelet medication, BMI, diabetes, smoking, alcohol use, and education level; CI: confidence interval; ref: reference group.