Table 1.
Patient baseline characteristics in the non-early revascularized and early revascularized groups
| No early revascularization (n = 1022) | % | Early revascularization (n = 958) | % | P-value | |
|---|---|---|---|---|---|
| Obstructive disease | 302 | 29.5 | 947 | 98.9 | <0.005 |
| ECR in LAD | 675 | 70.5 | N/A | ||
| ECR in LCx | 425 | 44.4 | N/A | ||
| ECR in RCA | 400 | 41.8 | N/A | ||
| Age (year, mean ± SD) | 64 ± 11 | 65 ± 11 | 0.01 | ||
| Male | 594 | 58.1 | 718 | 74.9 | <0.005 |
| Diabetes mellitus | 294 | 28.8 | 285 | 29.7 | 0.63 |
| Hypertension | 692 | 67.7 | 663 | 69.2 | 0.47 |
| Dyslipidaemia | 615 | 60.2 | 620 | 64.7 | 0.04 |
| Smoking | 268 | 26.2 | 234 | 24.4 | 0.36 |
| Family history | 324 | 31.7 | 338 | 35.3 | 0.09 |
| Symptoms | |||||
| Symptoms other than chest pain | 356 | 34.8 | 235 | 24.5 | <0.005 |
| Non-anginal chest pain | 127 | 12.4 | 106 | 11.1 | 0.35 |
| Atypical chest pain | 303 | 29.6 | 324 | 33.8 | 0.05 |
| Typical chest pain | 153 | 15.0 | 257 | 26.8 | <0.005 |
| MPI protocol | |||||
| Stress dose (MBq) | 674 ± 436 | 609 ± 446 | <0.005 | ||
| Rest dose (MBq) | 425 ± 313 | 480 ± 309 | <0.005 | ||
| Exercise stress | 367 | 35.9 | 382 | 39.9 | 0.07 |
| Pharmacologic stress | 654 | 64.0 | 575 | 60.0 | 0.07 |
ECR, early coronary revascularization; LAD, left anterior descending artery; LCx, left circumflex artery; MBq, megabecquerels; MPI, myocardial perfusion imaging; RCA, right coronary artery; SD, standard deviation.