Table 2.
Results of meta-analysis of studies for postoperative complications
| Complications | Studies |
Participants |
Fixed-effects model |
Random-effects model |
Tests of homogeneity |
||||||
| 3FL | 2FL | RR | 95%CI | RR | 95%CI | Q | df | P | I2 (%) | ||
| Recurrent nerve palsy | 10 | 2320 | 3534 | 1.43 | 1.28 to 1.60 | 1.48 | 1.13-1.92 | 19.05 | 9 | 0.02 | 53 |
| Anastomosis leak | 10 | 608 | 926 | 1.26 | 1.05 to 1.52 | 1.32 | 0.97-1.81 | 14.53 | 9 | 0.09 | 38 |
| Pulmonary complications | 12 | 2370 | 3653 | 0.88 | 0.80 to 0.98 | 0.93 | 0.75-1.16 | 13.38 | 11 | 0.27 | 18 |
| Chylothorax | 6 | 458 | 699 | 0.77 | 0.32 to 1.85 | 0.87 | 0.33-2.26 | 3.05 | 5 | 0.69 | 0 |
3FL: 3-field lymphadenectomy; 2FL: 2-field lymphadenectomy.