Baseline characteristics of the overall population and propensity score matching population according to stent techniques
| Variables | Overall populations | Propensity matched population | ||||
| Complex stenting (n=196) | Simple stenting (n=360) | p Value | Complex stenting (n=139) | Simple stenting (n=139) | p Value | |
| Age, years (±SD) | 65±9.9 | 64±11.1 | 0.718 | 64±10.1 | 64±10.9 | 0.833 |
| Sex (male, %) | 146 (74.5) | 262 (72.8) | 0.663 | 107 (77.0) | 102 (73.4) | 0.488 |
| Diabetes mellitus (%) | 53 (27.0) | 130 (36.1) | 0.030 | 42 (30.2) | 42 (30.2) | 0.999 |
| Hypertension (%) | 119 (60.7) | 209 (58.1) | 0.543 | 79 (56.8) | 79 (56.8) | 0.999 |
| Hyperlipidaemia (%) | 55 (28.1) | 121 (33.6) | 0.179 | 44 (31.7) | 62 (44.6) | 0.056 |
| Smoking (%) | 42 (21.4) | 93 (25.8) | 0.247 | 30 (21.6) | 38 (27.3) | 0.264 |
| Previous PCI (%) | 39 (19.9) | 66 (18.3) | 0.653 | 29 (20.9) | 30 (21.6) | 0.883 |
| Previous MI (%) | 17 (8.7) | 30 (8.3) | 0.890 | 12 (8.6) | 13 (9.4) | 0.834 |
| Previous heart failure (%) | 5 (2.6) | 5 (1.4) | 0.334 | 1 (0.7) | 3 (2.2) | 0.622 |
| Cerebrovascular disease (%) | 23 (11.7) | 34 (9.4) | 0.395 | 17 (12.2) | 10 (7.2) | 0.156 |
| Peripheral vascular disease (%) | 3 (1.5) | 7 (1.9) | 0.999 | 3 (2.2) | 3 (2.2) | 0.999 |
| Chronic renal failure (%) | 10 (5.1) | 12 (3.3) | 0.363 | 7 (5.0) | 3 (2.2) | 0.198 |
| Clinical manifestation | 0.081 | 0.538 | ||||
| Stable angina (%) | 70 (35.7) | 156 (43.3) | 51 (36.7) | 56 (40.3) | ||
| Acute coronary syndrome (%) | 126 (64.3) | 204 (56.7) | 88 (63.3) | 83 (59.7) | ||
| Extent of diseased vessel | <0.0001 | 0.961 | ||||
| Left main only (%) | 16 (8.2) | 54 (15.0) | 15 (10.8) | 15 (10.8) | ||
| Left main plus 1 vessel disease (%) | 26 (13.2) | 133 (36.9) | 15 (10.8) | 15 (10.8) | ||
| Left main plus 2 vessel diseases (%) | 74 (37.8) | 90 (25.0) | 57 (41.0) | 61 (43.9) | ||
| Left main plus 3 vessel diseases (%) | 80 (40.8) | 83 (23.1) | 52 (37.4) | 48 (34.5) | ||
| RCA involvement (%) | 97 (49.5) | 157 (43.6) | 0.184 | 66 (47.5) | 81 (58.3) | 0.072 |
| Restenotic lesion | 5 (2.6) | 15 (4.2) | 0.328 | 5 (3.6) | 5 (3.6) | 0.999 |
| Left ventricular ejection fraction (±SD) | 61.35±10.69 | 60.25±11.07 | 0.298 | 61.46±9.87 | 60.62±9.97 | 0.518 |
| EUROscore | 4.0±2.7 | 3.8±2.4 | 0.473 | 3.8±2.7 | 3.8±2.4 | 0.962 |
| SYNTAX score | 26.6±10.1 | 24.7±10.2 | 0.045 | 27.6±10.3 | 27.6±11.1 | 0.982 |
CABG, coronary artery bypass grafting; MI, myocardial infarction; PCI, percutaneous coronary intervention; RCA, right coronary artery; SYNTAX, synergy between percutaneous coronary intervention with taxus and cardiac surgery.