Table 1. Patient characteristics .
| Original | Complete one-year follow-up | |||||
| D2B time ≤ 90 min (n = 106) | D2B time > 90 min (n = 104) | p | D2B time ≤ 90 min (n = 89) | D2B time > 90 min (n = 86) | p | |
| Males, n (%) | 97 (91.5) | 83 (79.8) | 0.02 | 82 (92.1) | 69 (80.2) | 0.02 |
| Age, years (±SD) | 56.47 ± 10.64 | 59.57 ± 13.61 | 0.07 | 56.00 ± 9.58 | 59.33 ± 12.93 | 0.05 |
| Medical history, n(%) | ||||||
| Diabetes | 18 (17.0) | 25 (24.0) | 0.21 | 16 (18.0) | 21 (24.4) | 0.30 |
| Hypertension | 68 (64.2) | 59 (56.7) | 0.27 | 57 (64.0) | 49 (57.0) | 0.34 |
| Coronary artery disease | 11 (10.4) | 10 (9.6) | 0.85 | 9 (10.1) | 6 (7.0) | 0.46 |
| Myocardial infarction | 6 (5.7) | 5 (4.8) | 0.78 | 6 (6.7) | 2 (2.3) | 0.28 |
| CABG | 0 (0.0) | 2 (1.9) | 0.24 | 0 (0.0) | 1 (1.2) | 0.49 |
| ESRD | 1 (0.9) | 2 (1.9) | 0.62 | 1 (1.1) | 2 (2.3) | 0.62 |
| CVA | 8 (7.5) | 8 (7.7) | 0.97 | 2 (2.2) | 3 (3.5) | 0.68 |
| Smoking history | 73 (68.9) | 48 (46.2) | 0.001 | 63 (70.8) | 41 (47.7) | 0.002 |
| Hyperlipidemia | 18 (17.0) | 23 (22.1) | 0.35 | 17 (19.1) | 21 (24.4) | 0.39 |
| Onset to presentation, n (%) | 0.77 | 0.81 | ||||
| < 1 hour | 34 (32.1) | 31 (29.8) | 28 (31.5) | 25 (29.1) | ||
| 1-3 hours | 46 (43.4) | 42 (40.4) | 40 (44.9) | 36 (41.9) | ||
| 3-6 hours | 18 (17.0) | 19 (18.3) | 15 (16.9) | 16 (18.6) | ||
| 6-12 hours | 8 (7.5) | 12 (11.5) | 6 (6.7) | 9 (10.5) | ||
| Killip score on presentation, n (%) | 0.19 | 0.27 | ||||
| I | 66 (62.3) | 60 (57.7) | 56 (62.9) | 46 (57.0) | ||
| II | 27 (25.5) | 23 (22.1) | 25 (28.1) | 21 (24.4) | ||
| III | 4 (3.8) | 2 (1.9) | 2 (2.2) | 2 (2.3) | ||
| IV | 9 (8.5) | 19 (18.3) | 6 (6.7) | 14 (16.3) | ||
| Location of infarct, n (%) | 0.69 | 0.99 | ||||
| Anterior wall | 54 (50.9) | 57 (54.8) | 49 (55.1) | 46 (53.5) | ||
| Inferior wall | 44 (41.5) | 36 (34.6) | 33 (37.1) | 32 (37.2) | ||
| Lateral wall | 2 (1.9) | 2 (1.9) | 1 (1.1) | 1 (1.2) | ||
| Inferior wall + RV | 6 (5.7) | 9 (8.7) | 6 (6.7) | 7 (8.1) | ||
| Result of CAG, % | 0.85 | 0.49 | ||||
| 1-vessel disease | 25 (23.6) | 28 (26.9) | 22 (24.7) | 24 (27.9) | ||
| 2-vessel disease | 36 (34.0) | 33 (31.7) | 26 (29.2) | 30 (34.96) | ||
| 3-vessel disease | 45 (42.5) | 43 (41.3) | 41 (46.1) | 32 (37.2) | ||
| Intervention, n (%) | 0.34 | 0.26 | ||||
| Balloon only | 6 (5.7) | 6 (5.8) | 3 (3.4) | 2 (2.3) | ||
| Bare-metal stent | 96 (90.6) | 89 (85.6) | 83 (93.3) | 76 (88.4) | ||
| Drug-eluting stent | 4 (3.8) | 9 (8.7) | 3 (3.4) | 8 (9.3) | ||
| Mechanical intervention, n (%) | ||||||
| IABP | 14 (13.2) | 22 (21.2) | 0.13 | 11 (12.4) | 16 (18.6) | 0.25 |
| Pacemaker | 15 (14.2) | 16 (15.4) | 0.80 | 13 (14.6) | 15 (17.4) | 0.61 |
| ECMO | 0 (0.0) | 2 (1.9) | 0.24 | 0 (0) | 0 (0) | |
| CABG during first admission, n (%) | 2 (1.9) | 1 (1.0) | 1.00 | 2 (2.2) | 1 (1.2) | 1.00 |
| Peak CPK level, mg/L (±SD) | 2992.28 (±2351.09) | 3413.40 (±2899.85) | 0.25 | 2873.33 (±2375.03) | 3430.07 (±2731.26) | 0.15 |
| Length of first admission, days (±SD) | 9.76 (±13.21) | 8.53 (±5.64) | 0.38 | 7.9 (±6.00) | 8.59 (±5.42) | 0.42 |
CI, confidence interval; D2B, door-to-balloon; CABG, coronary artery bypass graft; ESRD, end-stage renal disease; CVA, cerebrovascular accident; RV, right ventricle; CAG, coronary angiography; IABP, intra-aortic balloon pump; ECMO, extracorporeal membrane oxygenation.