Table 1.
Baseline characteristics of patients
| Clinical variables | Total (n=1654) | First (n=347) | Second (n=329) | Third (n=486) | Fourth (n=492) |
| Age (years) | 59.4±10.4 | 58.5±9.9 | 59.1±10.6 | 59.3±10.6 | 60.2±10.4 |
| Gender, n (%) | |||||
| Male | 1235 (74.7) | 225 (64.8) | 239 (72.6) | 368 (75.7) | 403 (81.9) |
| Female | 419 (25.3) | 122 (35.2) | 90 (27.4) | 118 (24.3) | 89 (18.1) |
| Baseline SBP (mm Hg) | 134.6±21.0 | 135.8±19.9 | 135.8±20.4 | 134.4±20.6 | 133.1±22.6 |
| Baseline DBP (mm Hg) | 78.3±12.3 | 79.1±12.9 | 78.5±12.0 | 77.7±11.3 | 78.3±12.8 |
| Heart rate (bpm) | 75.5±13.2 | 74.3±12.1 | 75.3±14.0 | 75.4±12.6 | 76.6±14.1 |
| CAD risk factors, n (%) | |||||
| Diabetes mellitus | 321 (19.4) | 33 (9.5) | 65 (19.8) | 102 (21.0) | 121 (24.6) |
| Hypertension | 870 (52.6) | 174 (50.1) | 175 (53.2) | 263 (54.1) | 258 (52.4) |
| Current smoking | 841 (50.8) | 156 (45.0) | 170 (51.7) | 262 (53.9) | 253 (51.4) |
| Hyperlipidaemia | 182 (11.0) | 42 (12.1) | 37 (11.2) | 51 (10.5) | 52 (10.6) |
| Diagnosis, n (%) | |||||
| AMI | 730 (44.1) | 44 (12.7) | 97 (29.5) | 251 (51.6) | 338 (68.7) |
| Unstable angina | 311 (18.8) | 67 (19.3) | 83 (25.2) | 81 (16.7) | 80 (16.3) |
| CAD on CAG, n (%) | |||||
| One-vessel disease (≥50%) | 465 (28.1) | 239 (68.9) | 124 (37.7) | 76 (15.6) | 26 (5.3) |
| Multivessel disease (≥50%) | 1189 (71.9) | 108 (31.1) | 205 (62.3) | 410 (84.4) | 466 (94.7) |
| History, n (%) | |||||
| Prior MI | 134 (8.1) | 9 (2.6) | 16 (4.9) | 49 (10.1) | 60 (12.2) |
| Family history of CAD | 475 (28.7) | 107 (30.8) | 98 (29.8) | 126 (25.9) | 144 (29.3) |
| Coronary dominance, n (%) | |||||
| Right dominance | 1500 (90.6) | 304 (87.6) | 297 (90.3) | 445 (91.5) | 454 (92.3) |
| Left dominance | 110 (6.7) | 30 (8.7) | 22 (6.7) | 30 (6.2) | 28 (5.7) |
| Codominance | 44 (2.7) | 13 (3.7) | 10 (3.0) | 11 (2.3) | 10 (2.0) |
Four groups were based on the Gensini score: first grade (0–12.5), second grade (13–24.5), third grade (25–52.5) and fourth grade (≥53). Results are presented as mean±SD or n (%).
AMI, acute myocardial infarction; bpm, beats per minute; CAD, coronary artery disease; CAG, coronary artery angiography; DBP, diastolic blood pressure; MI, myocardial infarction; SBP, systolic blood pressure.