Table 1.
Baseline demographics and procedural variables for the full cohort and stratified by reperfusion status.
| Variable | Full cohort (n=506) | Reperfused (n=401) | Not reperfused (n=105) | p value |
|---|---|---|---|---|
| Age, years | 66.7 (14.6) | 66.0 (15.0) | 69.7 (12.5) | 0.018 |
| Male sex | 346, 48.9% | 281, 51.1% | 65, 41.1% | 0.027 |
| White race | 350, 69.2% | 269, 67.1% | 81, 77.1% | 0.047 |
| Hypertension (n=505) | 379, 75.1% | 298, 74.5% | 81, 77.1% | 0.578 |
| Atrial fibrillation | 206, 40.7% | 156, 38.9% | 50, 47.6% | 0.106 |
| Diabetes | 124, 24.5% | 97, 24.2% | 27, 25.7% | 0.746 |
| Hyperlipidemia | 249, 49.2% | 197, 49.1% | 52, 49.5% | 0.942 |
| Smoker | 120, 23.7% | 95, 23.7% | 25, 23.8% | 0.980 |
| Baseline systolic blood pressure | 144.0 (25.9) | 143.9 (25.5) | 144.5 (27.5) | 0.845 |
| Baseline diastolic blood pressure | 77.1 (18.8) | 77.0 (18.3) | 77.6 (20.5) | 0.808 |
| NIH stroke scale | 17, 13–22 | 17, 13–21 | 17, 14–22 | 0.390 |
| Occlusion site | ||||
| General anesthesia (n=498) | 306, 61.5% | 238, 60.6% | 68, 64.8% | 0.432 |
| Intravenous alteplase | 278, 54.9% | 218, 54.4% | 60, 57.1% | 0.610 |
| Intraarterial alteplase | 128, 25.3% | 93, 23.2% | 35, 33.3% | 0.033 |
| Trevo device (vs. Solitaire) | 426, 84.2% | 338, 84.3% | 88, 83.8% | 0.905 |
| Balloon guide catheter | 366, 51.7% | 296, 53.8% | 70, 44.3% | 0.035 |
| Contact aspiration | 116, 22.9% | 89, 22.2% | 27, 25.1% | 0.445 |
| Number of passes | 2.0 (1.2) | 1.9 (1.1) | 2.5 (1.4) | <0.001 |
| Rescue treatment | 114, 22.5% | 72, 18.0% | 42, 40.0% | <0.001 |
*
Binary variables presented as n, % and intergroup differences tested with the chi-squared test; continuous variables presented as mean (standard deviation) and tested with Student’s t-test; ordinal variables presented as median, interquartile range and tested with Wilcoxon Ranksum test.