Table 4.
Characteristics of patients ≥75 years and risk of poor functional outcome
| Variable | Risk of poor functional outcome (mRS 4–6) | RR (95 % CI) | |
|---|---|---|---|
| Characteristic present | Characteristic absent | ||
| Male sex | 64/75 (85 %) | 63/87 (72 %) | 1.18 (1.00–1.38) |
| Hypertension | 98/122 (80 %) | 29/40 (73 %) | 1.11 (0.90–1.37) |
| Diabetes mellitus | 29/42 (69 %) | 98/120 (82 %) | 0.85 (0.68–1.05) |
| Hyperlipidemia | 27/37 (73 %) | 100/125 (80 %) | 0.91 (0.74–1.13) |
| Atrial fibrillation | 57/68 (84 %) | 70/94 (74 %) | 1.13 (0.96-1.32) |
| Coronary artery disease | 35/41 (85 %) | 92/121 (76 %) | 1.12 (0.96–1.32) |
| Location of basilar artery occlusiona | |||
| Proximal third | 43/56 (77 %) | 56/75 (75 %) | 1.03 (0.85–1.25) |
| Middle third | 28/31 (90 %) | 56/75 (75 %) | 1.21 (1.02–1.44) |
| NIHSS score >20 | 90/104 (87 %) | 37/58 (64 %) | 1.36 (1.10–1.67) |
| Type of treatmentb | |||
| Antithrombotics | 38/51 (75 %) | 47/62 (76 %) | 0.98 (0.79–1.22) |
| IV tPA or IV tPA/IAT | 28/35 (80 %) | 47/62 (76 %) | 1.06 (0.85–1.31) |
| No treatment | 14/14 (100 %) | 47/62 (76 %) | 1.32 (1.15–1.52) |
| Time to treatmentc | |||
| 4–6 h | 35/50 (70 %) | 38/50 (76 %) | 0.92 (0.73–1.17) |
| 7–9 h | 13/17 (76 %) | 38/50 (76 %) | 1.01 (0.74–1.37) |
| ≥10 h | 27/31 (87 %) | 38/50 (76 %) | 1.15 (0.93–1.41) |
| Cause of stroke | |||
| Embolismd | 65/85 (76 %) | 38/47 (81 %) | 0.95 (0.79–1.14) |
| Symptomatic intracranial hemorrhage | 14/15 (93 %) | 113/147 (77 %) | 1.21 (1.03–1.43) |
| Insufficient recanalization | 18/20 (90 %) | 32/49 (65 %) | 1.38 (1.07–1.77) |
aDistal occlusion was taken as reference and is recorded under “characteristic absent”
bIAT only was taken as reference and is recorded under “characteristic absent”
c0–3 h was taken as reference and is recorded under “characteristic absent”
dAtherosclerosis was taken as reference and is recorded under “characteristic absent”