Table 1.
Baseline clinical and demographic characteristics stratified by number of vessels involved, n (%)
| Characteristics | Total |
Involved vessels |
P value | |
| Single vessel | Multivessel | |||
| Total | 571 | 342 (59.9) | 229 (40.1) | - |
| Clinical characteristics | ||||
| Age (mean ± SD, yr) | 39.04 ± 4.86 | 38.24 ± 5.18 | 40.24 ± 4.06 | < 0.001 |
| Body mass index (mean ± SD, kg/m2) | 26.24 ± 4.01 | 26.25 ± 4.07 | 26.22 ± 3.94 | 0.929 |
| Male gender | 501 (87.7) | 303 (88.6) | 198 (86.5) | 0.446 |
| Hypertension | 173 (30.3) | 86 (25.1) | 87 (38) | 0.001 |
| Diabetes | 103 (18) | 40 (11.7) | 63 (27.5) | < 0.001 |
| Positive family history | 41 (7.2) | 27 (7.9) | 14 (6.1) | 0.419 |
| Smoking | 189 (33.1) | 124 (36.3) | 65 (28.4) | 0.050 |
| Obesity | 89 (15.6) | 55 (16.1) | 34 (14.8) | 0.690 |
| CCS angina grade (within past two weeks) | ||||
| No symptoms, no angina | 272 (47.6) | 158 (46.2) | 114 (49.8) | 0.367 |
| CCS I | 33 (5.8) | 22 (6.4) | 11 (4.8) | |
| CCS II | 66 (11.6) | 35 (10.2) | 31 (13.5) | |
| CCS III | 105 (18.4) | 70 (20.5) | 35 (15.3) | |
| CCS IV | 95 (16.6) | 57 (16.7) | 38 (16.6) | |
CCS: Canadian Cardiovascular Society.