From: Systematic review and meta-analysis of laparoscopic and open gastrectomy for advanced gastric cancer
Outcomes | No. of studies | Sample size | Heterogeneity ( P, I2) | Overall effect size | 95% CI of overall effect | P value | |
---|---|---|---|---|---|---|---|
LG | OG | ||||||
Operating time (min) | 15 | 1327 | 1192 | <0.001, 93% | WMD = 48.67 | 34.09−63.06 | <0.001 |
Blood loss (ml) | 12 | 1157 | 1007 | <0.001, 91% | WMD = −139.01 | −174.57− −103.44 | <0.001 |
Retrieved lymph nodes | 15 | 1327 | 1192 | 0.26, 17% | WMD = −0.07 | −1.03−0.89 | 0.88 |
Proximal margin (cm) | 6 | 588 | 607 | 0.27, 21% | WMD = −0.26 | −0.54−0.01 | 0.06 |
Distal margin (cm) | 4 | 517 | 499 | 0.86, 0% | WMD = 0.08 | −0.16−0.32 | 0.50 |
Analgesics given (days) | 4 | 192 | 242 | <0.001, 89% | WMD = −1.57 | −2.40− −0.74 | <0.001 |
Time to ambulation (days) | 6 | 913 | 755 | <0.001, 96% | WMD = −1.01 | −1.56− −0.45 | <0.001 |
Time to first flatus (days) | 11 | 1045 | 974 | <0.001, 94% | WMD = −0.79 | −1.14− −0.44 | <0.001 |
Time to oral intake (days) | 9 | 967 | 793 | <0.001, 87% | WMD = −1.06 | −1.63− −0.50 | <0.001 |
Hospital stay (days) | 14 | 1238 | 1091 | <0.001, 84% | WMD = −3.11 | −4.13− −2.09 | <0.001 |
Overall complications | 15 | 1327 | 1192 | 0.66, 0% | RR = 0.74 | 0.61−0.90 | 0.003 |
Surgical complications | 15 | 1,327 | 1,192 | 0.56, 0% | RR = 0.73 | 0.58−0.92 | 0.007 |
Medical complications | 12 | 868 | 754 | 0.40, 5% | RR = 0.65 | 0.41−1.02 | 0.06 |
Mortality | 7 | 965 | 821 | 0.75, 0% | RR = 0.78 | 0.30−2.04 | 0.61 |