Table 3.
Summary of meta-analysis
| Comparison or outcome | Number of studies | Number of participants | Statistical method | Effect size | P | Test for heterogeneity | ||
|---|---|---|---|---|---|---|---|---|
| χ2 | P | I2 (%) | ||||||
| Common bile duct stones clearance | 11 | 1146 | RR (random), 95% CI | 1.06 (0.99-1.14) | 0.12 | 33.84 | 0.0002 | 70 |
| Post-operative morbidities | 11 | 1287 | RR (fixed), 95% CI | 1.03 (0.79-1.34) | 0.81 | 6.53 | 0.77 | 0 |
| Mortality | 10 | 1236 | RR (fixed), 95% CI | 0.30 (0.06-1.41) | 0.13 | 0.46 | 0.80 | 0 |
| Retained stone | 6 | 800 | RR (fixed), 95% CI | 0.91 (0.57-1.47) | 0.71 | 4.19 | 0.52 | 0 |
| Conversion to other procedures | 11 | 1287 | RR (fixed), 95% CI | 0.80 (0.55-1.16) | 0.23 | 12.60 | 0.13 | 36 |
| Total operating time | 5 | 539 | WMD (random), 95% CI | 25.42 (−22.38-73.22) | 0.30 | 170.60 | <0.00001 | 98 |
| Length of hospital stay | 6 | 754 | WMD (random), 95% CI | −1.24 (−3.57-1.09) | 0.30 | 264.07 | <0.00001 | 98 |
RR: Risk ratio, CI: Confidence interval, WMD: Weighted mean differences