Mortality multivariate analysis
| Source | Nparm | DF | L-R | Prob >χ2 |
| Age | 1 | 1 | 19.6 | <0.0001* |
| Hypertension | 1 | 1 | 0.47 | 0.49 |
| Atrial fibrillation | 1 | 1 | 0.05 | 0.83 |
| Baseline NIHSS | 1 | 1 | 17.3 | <0.0001* |
| ICA | 1 | 1 | 2.15 | 0.14 |
| IV tPA | 1 | 1 | 1.01 | |
| TOG (min) | 1 | 12.03 | 0.15 | 0.31 |
| GA use | 1 | 1 | 4.6 | 0.03* |
| Use of BGC | 1 | 1 | 3.3 | 0.07 |
OR 0.60 (0.3–1.04; P=0.07).
BGC, balloon guide catheter; GA, general anesthesia; ICA, internal carotid artery; IV, intravenous; INIHSS, National Institutes of Health Stroke Scale; TOG, time onset to groin; tPA tissue plasminogen activator.