Table 2. Baseline properties, electrocardiogram, angiographic findings, one-year mortality, and repeat revascularization rates of all cases based on the risk-based ECG score categories.
| Low risk (0-1 points) (n = 47) | Moderate risk (2 points) (n = 59) | High risk (≥ 3 points) (n = 46) | p value | |
| Age | 63 ± 11 | 63 ± 12 | 69 ± 12 | 0.023 |
| Gender (female), n (%) | 30 (63.8) | 40 (67.8) | 24 (52.2) | 0.248 |
| Diabetes mellitus, n (%) | 11 (23.4) | 15 (25.4) | 14 (30.4) | 0.729 |
| Hypertension, n (%) | 29 (61.7) | 33 (55.9) | 35 (76.1) | 0.096 |
| Smoking, n (%) | 21 (44.7) | 29 (49.2) | 15 (32.6) | 0.224 |
| Fasting blood glucose, mg/dl | 110 (95-127) | 102 (93-120) | 113 (96-139) | 0.242 |
| Creatinine, mg/dl | 0.8 (0.7-0.9) | 0.8 (0.7-0.9) | 0.9 (0.8-1) | 0.588 |
| Total cholesterol, mg/dl | 159 (142-211) | 164 (140-192) | 152 (130-177) | 0.214 |
| LDL-C, mg/dl | 103 (79-142) | 104 (83-124) | 91 (76-110) | 0.229 |
| HDL-C, mg/dl | 35 (29-38) | 34 (28-39) | 38 (31-43) | 0.182 |
| Triglyceride, mg/dl | 116 (86-163) | 109 (77-155) | 101 (77-162) | 0.575 |
| Hemoglobin, g/dl | 13.9 ± 1.9 | 13.9 ± 2.1 | 13.2 ± 1.7 | 0.123 |
| Troponin I, ng/ml | 0.4 (0.05-3.1) | 1 (0.3-5.8) | 3.4 (0.2-12.4) | 0.006 |
| Left ventricular ejection fraction, % | 60 (54-65) | 59 (49-65) | 50 (47-59) | 0.002 |
| Heart rate, bpm | 71 ± 14 | 71 ± 11 | 74 ± 14 | 0.487 |
| ST segment depression, n (%) | 1 (2.1) | 4 (6.8) | 4 (8.7) | 0.381 |
| ST elevation in aVR, n (%) | 3 (6.4) | 9 (15.3) | 6 (13.0) | 0.356 |
| T wave inversion, n (%) | 14 (29.8) | 15 (25.4) | 20 (43.5) | 0.132 |
| Q wave, n (%) | 3 (6.4) | 16 (27.1) | 30 (65.2) | < 0.001 |
| Left ventricular hypertrophy, n (%) | 2 (4.3) | 4 (6.8) | 20 (43.5) | < 0.001 |
| Prolonged JTc, n (%) | 3 (6.4) | 17 (28.8) | 23 (50) | < 0.001 |
| QRS duration, n (%) | < 0.001 | |||
| ≤ 80 | 9 (19.1) | 2 (3.4) | 0 (0) | |
| 81-110 | 38 (80.9) | 33 (55.9) | 9 (19.6) | |
| > 110 | 0 (0) | 24 (40.7) | 37 (80.4) | |
| Severe CAD, n (%) | 9 (19.1) | 22 (37.3) | 22 (47.8) | 0.013 |
| High SYNTAX score, n (%) | 9 (19.1) | 18 (30.5) | 20 (43.5) | 0.04 |
| SYNTAX score | 13 (9-17) | 15 (9-20) | 21 (15-26) | < 0.001 |
| Three-vessel disease, n (%) | 1 (2.1) | 7 (11.9) | 12 (26.1) | 0.003 |
| LMCA disease, n (%) | 3 (6.4) | 5 (8.5) | 5 (10.9) | 0.741 |
| Chronic total occlusion, n (%) | 13 (27.7) | 19 (32.2) | 21 (45.7) | 0.164 |
| Coronary artery calcification, n (%) | 5 (10.6) | 13 (22.0) | 16 (34.8) | 0.02 |
| Coronary artery bifurcation lesions | 6 (12.8) | 10 (16.9) | 11 (23.9) | 0.364 |
| Coronary artery lesion length > 20 mm | 32 (68.1) | 40 (67.8) | 32 (69.6) | 0.980 |
| One-year mortality, n (%) | 1 (2.1) | 1 (1.7) | 7 (15.2) | 0.006 |
| Repeat revascularization, n (%) | 1 (2.1) | 2 (3.4) | 4 (8.7) | 0.272 |
CAD, coronary artery disease; ECG, electrocardiographic; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; LMCA, left main coronary artery; SYNTAX, the synergy between percutaneous coronary intervention with Taxus and Cardiac Surgery.