Table 2 Baseline clinical characteristics in 925 STEMI patients with and without CR
|  | Non-rupture (n = 885) | Rupture (n = 40) | P value |
|---|---|---|---|
Age (year) | 58.5 ± 11.7 | 68.2 ± 10.1 | < 0.001 |
Male gender (%) | 731 (82.6%) | 23 (57.5%) | 0.002 |
Socio-economic feature (rural area) | 446 (50.4%) | 17 (42.5%) | 0.041 |
Symptom-to-admission interval | Â | Â | 0.017 |
  < 12 h | 324 (36.6%) | 18 (45.0%) |  |
 12 ~ 24 h | 41 (4.6%) | 5 (12.5%) |  |
  > 24 h | 520 (58.8%) | 8 (42.5%) |  |
Previous history | |||
 Diabetes | 127 (14.4%) | 12 (30.0%) | 0.012 |
 Hypertension | 380 (42.9%) | 26 (65.0%) | 0.008 |
 Alcohol consumption | 266 (30.1%) | 0 (0%) | < 0.001 |
 smoking | 587 (66.3) | 12 (30.0) | < 0.001 |
 Myocardial infarction | 53 (6.0%) | 0 (0%) | 0.162 |
 Angina pectoris | 237 (27.0%) | 6 (15.0%) | 0.101 |
 Coronary surgery | 24 (2.7%) | 1 (2.5%) | 0.936 |
Physical examination at admission | |||
 Systolic blood pressure (mmHg) | 123 ± 20 | 110 ± 39 | 0.001 |
 Diastolic blood pressure (mmHg) | 77 ± 13 | 72 ± 25 | 0.047 |
 Heart rate (bpm) | 76 ± 14 | 83 ± 31 | 0.004 |
Killip class | Â | Â | 0.002 |
 I | 552 (62.4%) | 11 (45.8%) |  |
 II | 260 (29.4%) | 6 (15.0%) |  |
 III | 43 (4.9%) | 3 (7.5%) |  |
 IV | 30 (3.4%) | 4 (10.0%) |  |
MI localization | |||
 anterior | 359 (40.6%) | 26 (65%) | 0.002 |
 inferior | 389 (44%) | 8 (20%) | 0.003 |
Infarct-related coronary artery | Â | Â | 0.417 |
 Left anterior descending artery | 429 (56.6%) | 17 (68%) |  |
 Left circumflex artery | 58 (7.7%) | 2 (8%) |  |
 Right coronary artery | 266 (35.1%) | 6 (24%) |  |
 Left main trunk | 5 (0.7%) | 0 (0.0%) |  |
Number of stenosed vessel | Â | Â | 0.854 |
 1 | 202 (26.6%) | 4 (21.1%) |  |
 2 | 269 (35.5%) | 7 (36.8%) |  |
 3 | 287 (37.9%) | 8 (42.1%) |  |