Additional meta-analysis for pooled effect of RCTs only
| Number of studies | Homogeneity | Peto OR (95% CI) | p Values | ||
| Cochran Q | I2 | ||||
| Postoperative hemorrhage | 4 | 2.365 | 0.00% | 1.91 (1.06 to 3.43) | 0.031 |
| Deep vein thrombosis | 5 | 7.827 | 48.89% | 0.51 (0.38 to 0.69) | <0.001 |
| Pulmonary embolism | 2 | 0.346 | 0.00% | 0.36 (0.05 to 2.55) | 0.306 |
| Venous thromboembolism | 2 | 4.186 | 76.11% | 0.62 (0.31 to 1.24) | 0.175 |
| Mortality | 4 | 4.076 | 26.40% | 1.83 (0.92 to 3.62) | 0.083 |