Table 1. Baseline characteristics.
| Overall | Without statin | With statin | p value | |
|---|---|---|---|---|
| (N = 8016) | (N = 5551) | (N = 2465) | ||
| Age | 57.1±11.8 | 55.6±12.2 | 60.7±10.2 | <0.001 |
| Male gender | 4152 (51.8) | 2895 (52.2) | 1257 (51.0) | 0.338 |
| Hypertension | 3930 (49.0) | 2513 (45.3) | 1417 (57.5) | <0.001 |
| Diabetes mellitus | 978 (12.2) | 530 (9.5) | 448 (18.2) | <0.001 |
| Dyslipidemia | 4544 (56.7) | 2500 (45.0) | 2044 (82.9) | <0.001 |
| Family history | 1982 (24.7) | 1294 (23.3) | 688 (27.9) | <0.001 |
| Current smoking | 1277 (15.9) | 917 (16.5) | 360 (14.6) | 0.031 |
| Body mass index | 26.3±4.7 | 26.3±4.8 | 26.3±4.7 | 0.688 |
| Renal insufficiency | 16 (0.2) | 10 (0.2) | 6 (0.2) | 0.591 |
| Peripheral vascular disease | 112 (1.4) | 83 (1.5) | 29 (1.2) | 0.205 |
| Cerebrovascular disease | 73 (0.9) | 51 (0.9) | 22 (0.9) | 0.965 |
| Total cholesterol | 191.8±43.0 | 192.4±42.9 | 190.3±43.1 | 0.089 |
| LDL cholesterol | 118.0±35.8 | 118.3±36.3 | 117.3±34.6 | 0.332 |
| HDL cholesterol | 53.6±16.3 | 53.9±16.6 | 53.1±15.6 | 0.066 |
| CAC | 65.6±242.1 | 46.8±198.6 | 108.1±314.9 | <0.001 |
| SIS | 1.0±1.7 | 0.7±1.5 | 1.5±2.0 | <0.001 |
LDL, low-density lipoprotein; HDL, high-density lipoprotein; CAC, coronary artery calcium; SIS, segment involvement score.