Table 4. Baseline characteristics of the patients with CAD followed up.
| Characteristic | CT group(n = 137) | NCT group(n = 271) | p value |
| age(year) | 68±8.9 | 66±10.6 | 0. 163 |
| female gender | 74(54.0) | 85(31.4) | <0. 001 |
| medical history | |||
| hypertention | 112(81.8) | 194(71.6) | 0. 025 |
| diabetes mellitus | 32(23.4) | 82(30.3) | 0. 142 |
| hyperlipemia | 21(15.3) | 59(21.8) | 0. 122 |
| cigarette smoking | 33(24.1) | 112(41.3) | 0. 001 |
| heart failure | 29(21.2) | 52(19.2) | 0. 636 |
| previous myocardial infarction | 33(24.1) | 68(25.1) | 0. 824 |
| previous coronary revascularization | |||
| PCI | 86(62. 8) | 177(65.3) | 0. 613 |
| Coronary-artery bypass grafting | 2(1.5) | 3(1.1) | 0. 760 |
| No. of vessel (≥50% stenosis) | |||
| One vessel | 71(51.8) | 119(43.9) | 0.130 |
| Two vessel | 37(27.0) | 64(23.6) | 0.454 |
| Three vessel | 29(21.2) | 88(32.5) | 0.017 |
| asprin therapy | 115(83.9) | 228(84.1) | 0. 960 |
| clopidogrel therapy | 135(98.5) | 267(98.5) | 0. 990 |
| statin therapy | 75(54.7) | 138(50.9) | 0. 465 |
| beta-blockers therapy | 66(48.2) | 127(46.9) | 0. 802 |
| calcium channel blocker | 72(52.6) | 136(50.2) | 0.651 |
| ACEI/ARB therapy | 78(56.9) | 142(52.4) | 0. 385 |