Table 2.
The pooled results of subgroup analysis of the exercise-based cardiac rehabilitation effect on all-cause mortality for patients after PCI or CABG
| Subgroups | Sample size | Pooled results | Heterogeneity | |||
|---|---|---|---|---|---|---|
| RR [95% CI] | p-value | I2 | Analytical effect model | |||
| Operation | ||||||
| CABG | 277 | 0.78 [0.38, 1.59] | 0.49 | 1% | Fixed-effect model | |
| PCI | 570 | 0.57 [0.19, 1.69] | 0.31 | 0% | Fixed-effect model | |
| PCI + CABG | 860 | 1.05 [0.53, 2.09] | 0.89 | 3% | Fixed-effect model | |
| Follow-up time | ||||||
| 6 to 12 months | 1135 | 0.83 [0.48, 1.46] | 0.53 | 0% | Fixed-effect model | |
| 12 to 36 months | 232 | 0.70 [0.21, 2.33] | 0.56 | 0% | Fixed-effect model | |
| Longer than 3 years | 340 | 0.95 [0.37, 2.44] | 0.92 | 0% | Fixed-effect model | |
| Total duration | ||||||
| ≤6 months | 809 | 0.87 [0.48, 1.56] | 0.63 | 0% | Fixed-effect model | |
| 6 to 12 months | 244 | 0.71 [0.29, 1.70] | 0.44 | 11% | Fixed-effect model | |
| Longer than 12 months | 28 | 2.00 [0.09, 45.12] | 0.66 | 1% | Fixed-effect model | |
| Male | ||||||
| >80% | 991 | 0.80 [0.46, 1.41] | 0.45 | 2% | Fixed-effect model | |
| <80% | 491 | 0.88 [0.40, 1.96] | 0.76 | 7% | Fixed-effect model | |
| CR components | ||||||
| Exercise + Education | 1313 | 0.84 [0.52, 1.34] | 0.46 | 0% | Fixed-effect model | |
| Exercise + Education + Psychological support | 354 | 0.84 [0.19, 3.77] | 0.82 | 0% | Fixed-effect model | |
CABG, coronary artery bypass graft; CI, confidence interval; CR, cardiac rehabilitation; PCI, percutaneous coronary interventions; RR, relative risk; .