Table 1.
Baseline clinical characteristics
| SYNTAX II | SYNTAX I PCI arm | P-value | |
|---|---|---|---|
| (n = 454) | (n = 315) | ||
| Age (years) | 66.7±9.7 (454) | 66.7±9.1 (315) | 0.99 |
| Male | 93.2% (423/454) | 93.0% (293/315) | 0.93 |
| Body mass index (kg/m2) | 28.9±4.7 (449) | 28.2±4.4 (315) | 0.032 |
| Diabetes mellitus type I or II | 30.3% (135/446) | 29.2% (92/315) | 0.75 |
| Insulin treated | 8.5% (38/446) | 10.5% (33/315) | 0.36 |
| Oral medication | 19.5% (87/446) | 16.8% (53/315) | 0.35 |
| Diet only | 2.0% (9/446) | 1.9% (6/315) | 0.91 |
| Current smoker | 14.7% (64/435) | 17.8% (56/315) | 0.26 |
| Previous MI | 12.5% (56/447) | 28.7% (89/310) | <0.001 |
| Previous stroke | 5.6% (25/449) | 1.9% (6/315) | 0.010 |
| Hypertension | 77.0% (344/447) | 73.4% (229/312) | 0.26 |
| Hyperlipidaemia | 77.3% (341/441) | 74.4% (232/312) | 0.35 |
| Creatinine clearance (ml/min) | 82.0±26.9 (454) | 87.3±28.5 (315) | 0.008 |
| Ejection fraction (%) | 58.1±8.3 (454) | 61.8±11.3 (315) | <0.001 |
| Peripheral vascular disease | 7.7% (35/454) | 9.5% (30/315) | 0.37 |
| COPD | 10.8% (49/454) | 12.7% (40/315) | 0.42 |
| Clinical presentation | <0.001 | ||
| Silent ischaemia | 5.5% (30/449) | 13.3% (42/315) | |
| Stable angina | 68.8% (309/449) | 61.6% (194/315) | |
| Unstable angina | 25.6% (115/449) | 25.1% (79/315) | |
| Anatomic SYNTAX Score | 20.3±6.4 (454) | 22.8±8.7 (315) | <0.001 |
| SYNTAX Score II PCI | 30.2±8.6 (454) | 30.6±8.7 (315) | 0.528 |
| Predicted 4-year mortality PCI (%) | 8.9±8.8% (454) | 9.2±8.7% (315) | 0.64 |
| SYNTAX Score II CABG | 29.1±10.4 (454) | 29.1±9.6 (315) | 1.0 |
| Predicted 4-year mortality CABG (%) | 9.0±9.3 (454) | 8.5±8.1 (315) | 0.44 |
MI, myocardial infarction; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft; COPD, chronic obstructive pulmonary disease.