Baseline clinical characteristics of the study population
| Total (N = 171) | DWI-ASPECTS | P Value | ||
|---|---|---|---|---|
| 7–10 (n = 120) | 4–6 (n = 51) | |||
| Age (yr) (median) (IQR) | 72 (63.5–78) | 73 (65–78) | 68 (60–74) | .014 |
| Male sex | 88 (51.5%) | 58 (48.3%) | 30 (58.8%) | .209 |
| Risk factors | ||||
| Hypertension | 95 (55.6%) | 69 (57.5%) | 26 (51%) | .432 |
| Diabetes mellitus | 32 (18.7%) | 22 (18.3%) | 10 (19.6%) | .845 |
| Coronary artery disease | 20 (11.7%) | 14 (11.7%) | 6 (11.8%) | .985 |
| Dyslipidemia | 42 (24.6%) | 35 (29.2%) | 7 (13.7%) | .034a |
| Smoking | 46 (26.9%) | 27 (22.5%) | 19 (37.3%) | .059a |
| Atrial fibrillation | 87 (50.9%) | 64 (53.3%) | 23 (45.1%) | .324 |
| Congestive heart failure | 6 (3.5%) | 5 (4.2%) | 1 (1.9%) | .670a |
| History of stroke or TIA | 22 (12.9%) | 18 (15%) | 4 (7.8%) | .317a |
| Intravenous thrombolysis | 104 (60.8%) | 71 (59.2%) | 33 (64.7%) | .497 |
| Time to treatment (min) (median) (IQR) | 245 (190–310) | 257.5 (190–315) | 220 (190–281) | .155 |
| Procedure time (min) (median) (IQR) | 33 (20–50) | 34 (20.5–50) | 30 (20–43.5) | .444 |
| Time to revascularization (min) (median) (IQR) | 280 (223.5–352) | 297.5 (228.5–355) | 252 (221.5–326) | .136 |
| Baseline NIHSS score (median) (IQR) | 13 (10–16) | 12 (9–15) | 15 (12–18) | <.001 |
| Stroke etiology | ||||
| Large-artery atherosclerosis | 43 (25.1%) | 32 (26.7%) | 11 (21.6%) | .482 |
| Cardioembolism | 99 (57.9%) | 70 (58.3%) | 29 (56.9%) | .859 |
| Undetermined | 28 (16.4%) | 17 (14.2%) | 11 (21.6%) | .231 |
↵a Comparisons were performed using the Fisher exact test. Comparisons of categoric variables were performed using χ2 tests unless otherwise indicated.