Table 1.
Baseline characteristics.
| Provisional (n=121) | Routine (n=116) | P value | |
|---|---|---|---|
| Age | 59±10 | 59±11 | 0.991 |
| Gender | 88 (73) | 83 (72) | 0.952 |
| Number of patients with | |||
| - Refractory angina <48 hrs | 88 (73) | 79 (68) | |
| - Angina after recent AMI | 25 (21 ) | 29 (25) | 0.713 |
| - Stabilised angina | 8 (6.6) | 8 (6.9) | |
| Previous history | |||
| - Myocardial infarction | 40 (33) | 42 (36) | 0.610 |
| - PCI | 13 (11) | 13 (11) | 0.909 |
| - CABG | 4 (3.3 ) | 6 (5.2) | 0.475 |
| Risk factors | |||
| - Diabetes mellitus | 10 (8.3 ) | 11 (9.5) | 0.741 |
| - Hypercholesterolaemia | 49 (41) | 51 (44) | 0.589 |
| - Hypertension | 54 (45) | 32 (28) | 0.006 |
| - Smoking | 54 (45) | 58 (50) | 0.408 |
| - Family history | 61 (50) | 63 (54) | 0.548 |
| Medication at entry | |||
| - Beta-blockers | 87 (73) | 84 (72) | 0.988 |
| - Calcium antagonist | 34 (28) | 40 (35) | 0.309 |
| - Nitrates | 107 (89) | 105 (91) | 0.731 |
| - Heparin | 93 (78 ) | 84 (72)97 (84) | 0.235 |
| - Aspirin | 106 (88) | 112 (97) | 0.017 |
| Medication at discharge | |||
| - Beta-blockers | 97 (82) | 78 (69) | 0.027 |
| - Calcium antagonist | 29 (24) | 40 (35) | 0.066 |
| - Nitrates | 30 (25) | 21 (19) | 0.223 |
| - Aspirin | 115 (97) | 109 (97) | 0.941 |
| - Ticlopidine | 24 (20) | 89 (79) | <0.001 |
| >- Coumadins | 3 (2.5) | 17 (15) | 0.001 |
| Coronary angiography: | |||
| Vessel disease | |||
| - 1 | 72 (60) | 79 (68) | |
| - 2 | 39 (32) | 28 (24) | 0.354 |
| - 3 | 10 (8) | 9 (8) | |
| Culprit lesion | |||
| - RCA | 44 (36) | 39 (34) | |
| - LAD | 58 (49) | 55 (47) | 0.781 |
| - RCX | 19 (15) | 22 (19) |
Data are given as n (%) or mean ± standard deviation. AMI=acute myocardial infarction, PCI=percutaneous coronary intervention, CABG=coronary artery bypass graft, RCA=right coronary artery, LAD=left anterior descending artery, RCX=right circumflex artery.