Table 3.
TOAST Stroke Subtype Incidence Rates
| Group 1 No AF, No Comorbidities n=7837 (27.7%) | Group 2 No AF, Has Comorbidities n=18 103 (64.1%) | Group 3 Has AF, No Comorbidities n=386 (1.4%) | Group 4 Has AF, Has Comorbidities n=1927 (6.8%) | |
|---|---|---|---|---|
| Total strokes | 175 | 867 | 18 | 146 |
| Total stroke incidence rate | 2.4 | 5.6 | 5.4 | 9.9 |
| Ischemic stroke incidence rate | 2.1 | 5.1 | 3.9 | 9.2 |
| Cardioembolic | 0.27 (12.9%) | 0.85 (16.7%) | 2.70 (69.2%) | 5.04 (54.8%) |
| Large‐vessel | 0.24 (11.6%) | 0.65 (12.7%) | ··· | 1.30 (14.1%) |
| Small‐vessel | 0.33 (15.5%) | 0.81 (15.9%) | ··· | 0.40 (4.4%) |
| Other | 0.11 (5.1%) | 0.25 (4.9%) | ··· | 0.34 (3.7%) |
| Unknown | 1.15 (54.8%) | 2.54 (49.9%) | 1.20 (30.8%) | 2.12 (23.0%) |
| Hemorrhagic stroke incidence rate | 0.3 | 0.6 | 1.5 | 0.7 |
Incidence rates are per 1000 person‐years of follow‐up. Percentages refer to the fraction of all ischemic strokes in a given group assigned to each TOAST (Trial of Org 10172 in Acute Stroke Treatment [ischemic stroke classification stroke subtype]). Raw incidence rates by stroke subtype in each group, as well as proportions of all strokes attributed to each cause. AF indicates atrial fibrillation.