Table 5. Clinical outcomes according to residual SYNTAX score ≤ 8 and > 8.
| Variables | ETT (−) | ETT (+) | Unadjusted HR (95% CI) | P value | Adjusted HRa (95% CI) | P value | |
|---|---|---|---|---|---|---|---|
| Residual SYNTAX score ≤ 8 | n = 498 | n = 153 | |||||
| Major adverse cardiac events | 41 (26.5) | 31 (42.1) | 2.57 (1.61–4.10) | < 0.001 | 1.90 (1.09–3.30) | 0.02 | |
| All-cause death or myocardial infarction | 9 (5.4) | 4 (5.0) | 1.28 (0.39–4.18) | 0.68 | 1.59 (0.40–6.28) | 0.51 | |
| Coronary revascularization | 28 (16.5) | 28 (37.8) | 3.41 (2.02–5.76) | < 0.001 | 2.53 (1.35–4.71) | 0.004 | |
| Residual SYNTAX score > 8 | n = 65 | n = 59 | |||||
| Major adverse cardiac events | 15 (40.9) | 18 (43.3) | 1.20 (0.61–2.39) | 0.60 | 1.22 (0.58–2.57) | 0.59 | |
| All-cause death or myocardial infarction | 4 (8.2) | 4 (13.2) | 0.93 (0.23–3.72) | 0.91 | 0.45 (0.06–3.44) | 0.44 | |
| Coronary revascularization | 13 (37.2) | 13 (31.5) | 1.00 (0.46–2.16) | 1.00 | 0.99 (0.42–2.31) | 0.98 | |
Values are expressed as number (%, Kaplan-Meier estimates).
SYNTAX = Synergy Between PCI With Taxus and Cardiac Surgery, ETT = exercise treadmill testing, HR = hazard ratio, CI = confidence interval.
aAdjusted for age, sex, diabetes mellitus, hypertension, previous PCI, chronic total occlusion PCI, thrombotic occlusion PCI, metabolic equivalents of task, and left ventricular ejection fraction.