Table 2.
Clinical characteristics of enrolled patients. CCTA: coronary computed tomography angiography; CAD: coronary artery disease.
| Characteristics | General Population (2080) | Dual LAD (124) |
No Dual LAD (1956) |
|---|---|---|---|
| Age, mean (standard deviation) | 66.09 (DS 11.9) | 65.65 (DS 11.22) | 66.12 (DS 11.97) |
| Female | 764 (36.70%) | 56 (45.16%) | 708 (36.20%) |
| Male | 1316 (63.30%) | 68 (54.84%) | 1248 (63.80%) |
| Indication for CCTA: | |||
| Unstable angina | 20 (0.96%) | 1 (0.81%) | 19 (0.97%) |
| Stable angina | 413 (19.86%) | 35 (28.23%) | 378 (19.33%) |
| Preoperative work up | 47 (2.26%) | 4 (3.20%) | 43 (2.20%) |
| Follow-up | 283 (13.61%) | 9 (7.26%) | 274 (14.01%) |
| Screening test | 1299 (62.5%) | 75 (60.48%) | 1224 (62.58%) |
| Other causes | 18 (0.86%) | 0 (0%) | 18 (0.86%) |
| Cardiovascular risk factors: | |||
| Hypertension | 1053 (50.63%) | 69 (55.65%) | 984 (50.31%) |
| Smoking | 112(5.34%) | 10 (8.06%) | 102 (5.21%) |
| CAD familiarity | 99(4.76%) | 12 (9.68%) | 87 (4.45%) |
| Dyslipidemia | 29(1.39%) | 2 (1.61%) | 27 (1.38%) |
| Significant stenosis (>50% diameter stenosis): | |||
| Present | 426 (20.48%) | 19 (15.32%) | 407 (20.81%) |