Baseline demographic and clinical characteristics
| Fibrinolysis (n = 99) | Angioplasty (n = 103) | p Value | |
|---|---|---|---|
| MI, myocardial infarction; RV, right ventricle. | |||
| Demographics | |||
| Age (years (SD)) | 60.7 (10.1) | 59.5 (9.2) | 0.40 |
| Age ≥ 65 years | 38 (38.4%) | 35 (34.0%) | 0.52 |
| Male sex | 73 (73.7%) | 72 (69.9%) | 0.55 |
| Chinese ethnicity | 53 (53.5%) | 66 (64.1%) | NS |
| Insulin treated | 12 (12.1%) | 11 (10.7%) | 0.75 |
| Risk factors | |||
| Hypertension | 58 (58.6%) | 65 (63.1%) | 0.51 |
| Hypercholesterolaemia | 93 (93.9%) | 93 (90.3%) | 0.34 |
| Smoking (current) | 52 (52.5%) | 43 (41.7%) | 0.13 |
| Family history of coronary disease | 21 (21.2%) | 14 (13.6%) | 0.15 |
| Cardiac history | |||
| MI | 15 (15.2%) | 14 (13.6%) | 0.75 |
| Coronary angioplasty | 1 (1.0%) | 5 (4.9%) | 0.21 |
| Bypass surgery | 2 (2.0%) | 2 (1.9%) | 1.0 |
| Heart failure | 3 (3.0%) | 4 (3.9%) | 1.0 |
| Non-cardiac history | |||
| Stroke | 4 (4.0%) | 7 (6.8%) | 0.54 |
| Renal impairment | 3 (3.0%) | 8 (7.8%) | 0.26 |
| Clinical presentation | |||
| Time from onset to arrival (hours (SD)) | 3.6 (2.5) | 3.5 (2.6) | 0.72 |
| Time from arrival to therapy (minutes (SD)) | 68.0 (31.3) | 103.7 (40.0) | <0.001 |
| Killip class | |||
| I | 68 (68.7%) | 62 (60.2%) | 0.21 |
| II | 25 (25.3%) | 25 (24.3%) | 0.87 |
| III | 5 (5.1%) | 5 (4.9%) | 1.00 |
| IV | 1 (1.0%) | 11 (10.7%) | 0.005 |
| ≥III | 6 (6.1%) | 16 (15.5%) | 0.03 |
| Average Killip class | 1.38 (0.63) | 1.66 (0.99) | 0.019 |
| Electrocardiographic features | |||
| Anterior MI | 43 (43.4%) | 53 (51.5%) | 0.25 |
| Inferior MI with RV involvement | 16 (16.2%) | 15 (14.6%) | 0.75 |
| Inferior MI (precordial ST depression) | 26 (26.3%) | 27 (26.3%) | 0.99 |
| Inferior MI (isolated) | 14 (14.1%) | 8 (7.8%) | 0.15 |