Baseline clinical and angiographic features according to time-to-treatment
| Time to treatment (h) | <3 h | ≥3 h to <6 h | ≥6 h to <12 h | p |
| Number of patients | 128 | 135 | 36 | |
| Age (mean±SD) | 60±10 | 60±11 | 60±14 | 0.93 |
| Sex (M), n (%) | 109 (85) | 102 (76) | 27 (75) | 0.11 |
| Diabetes, n (%) | 17 (13) | 22 (16) | 4 (11) | 0.65 |
| TL failed, n (%) | 25 (20) | 13 (10) | 4 (11) | 0.06 |
| IIb/IIIa inhibitors, n (%) | 66 (52) | 56 (41) | 15 (42) | 0.22 |
| MVD, n (%) | 48 (38) | 54 (40) | 14 (39) | 0.91 |
| LAD as infarct- related artery, n (%) | 55 (43) | 59 (44) | 16 (44) | 0.98 |
| Baseline TIMI flow 0–1, n (%) | 112 (88) | 118 (87) | 33 (92) | 0.74 |
| Baseline TS 3–5, n (%) | 81 (63) | 80 (59) | 24 (67) | 0.65 |
| RVD (mm) (mean±SD) | 3.15±0.44 | 3.16±0.45 | 3.13±0.32 | 0.64 |
| Lesion length (mm) (mean±SD) | 22.6±9.4 | 20.6±9.3 | 21.78±7.05 | 0.23 |
LAD, left anterior descending artery; MVD, multivessel disease; RVD, reference vessel diameter; TL, thrombolysis; TS, thrombus score.