| Characteristic | Proportion of patients, %* | |||
|---|---|---|---|---|
| Comprehensive stroke centre n = 297 N, weighted = 1363.8 (66.5%) | Primary stroke centre n = 162 N, weighted = 569.4 (27.8%) | Other n = 21 N, weighted = 116.3 (5.7%) | Overall n = 480 N, weighted = 2049.5 | |
| Age ≥ 70 yr | 60.2 | 55.1 | 73.9 | 59.5 |
| Female sex | 45.4 | 45.2 | 48.7 | 45.5 |
| Hypertension, % | 67.0 | 65.2 | 77.3 | 67.1 |
| Atrial fibrillation | 21.4 | 16.7 | 14.1 | 19.7 |
| Diabetes mellitus | 22.0 | 14.3 | 15.1 | 19.4 |
| Previous stroke | 16.1 | 23.2 | 11.5 | 17.8 |
| Coronary artery disease | 31.5 | 15.5 | 67.2 | 29.1 |
| Current smoker | 15.5 | 10.0 | 36.4 | 16.1 |
| Peripheral vascular disease | 2.4 | 1.3 | 18.1 | 3.0 |
| Prestroke independence | 73.8 | 71.5 | 55.7 | 72.1 |
| CNS score ≤ 8 | 70.9 | 70.9 | 55.7 | 70.0 |
| Arrival by ambulance | 96.2 | 83.4 | 69.7 | 91.2 |
| Interval, h, mean ± SE | ||||
| Onset to arrival | 3.3 ± 1.1† | 5.1 ± 0.8† | 32.2 ± 5.7† | 5.4 ± 0.8 |
| Arrival to imaging | 0.7 ± 0.1 | 3.4 ± 2.7 | 4.4 | 1.5 ± 0.7 |
| Onset to treatment | 4.6 ±1.1 | 3.4 ± 0.3 | 2.9 ± 0.1 | 4.2 ± 0.7 |
| Interval, min, mean ± SE | ||||
| Imaging to treatment | 79.0 ± 8.6 | 71.9 ± 4.9 | 84.4 | 77.2 ± 6.3 |
| Arrival to treatment | 138.1 ± 17.7 | 100.9 ± 15.3 | 112.7 ± 1.9 | 121.1 ± 11.4 |
Note: CAD = coronary artery disease, CNS = Canadian neurological scale, SE = standard error. *Unless otherwise stated. †Statistically significant difference between the 3 groups (p < 0.001). Primary centre compared with comprehensive centre (p = 0.05). Other intervals were not significantly different.