Table 3.
Treatment effect (percutaneous coronary intervention vs. coronary artery bypass grafting) on all-cause death in diabetic and non-diabetic patients
| PCI (n = 903) | CABG (n = 897) | Unadjusted HR (95% CI) | Unadjusted P-value | Adjusted HR (95% CI) | Adjusted P-value | P -interaction | |
|---|---|---|---|---|---|---|---|
| 10 years | |||||||
| Diabetes | 36.4% (80) | 34.5% (72) | 1.10 (0.80–1.52) | 0.551 | 1.15 (0.80–1.65) | 0.440 | 0.856 |
| No diabetes | 25.8% (168) | 21.4% (140) | 1.23 (0.98–1.53) | 0.076 | 1.30 (1.01–1.66) | 0.041 | |
| Maximum follow-up | |||||||
| Diabetes | 51.7% (94) | 67.3% (93) | 1.00 (0.75–1.33) | 0.991 | 1.06 (0.77–1.47) | 0.712 | 0.394 |
| No diabetes | 37.9% (209) | 33.3% (172) | 1.26 (1.03–1.55) | 0.024 | 1.34 (1.07–1.68) | 0.010 | |
Percentage of deaths at a given time point, based on Kaplan–Meier estimates (number of deaths). The number of patients entered into the multivariable Cox model was 87.3% (1177/1348) patients in non-diabetic group and 86.9% (393/452) patients in diabetic group, respectively. Test of interaction is on adjusted Cox proportional hazards model.
CABG, coronary artery bypass grafting; PCI, percutaneous coronary intervention.