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Table 3 Pooled outcomes of subgroup analysis for studies of wedge resection

From: Laparoscopic versus open resection for gastric gastrointestinal stromal tumors: an updated systematic review and meta-analysis

Outcomes Number of studies Sample size Heterogeneity (P, I2) Overall effect size 95% CI of overall effect P
   LAP OPEN     
Operation time (min) 8 203 233 <0.001, 82% WMD = 12.03 -8.03, 32.09 0.24
Blood loss (ml) 5 118 151 0.03, 64% WMD = -48.29 -78.23, -18.36 <0.01
Time to first flatus (d) 6 119 144 0.10, 46% WMD = -1.35 -1.66, -1.03 <0.01
Time to oral intake (d) 7 182 208 0.001, 73% WMD = -1.67 -2.19, -1.15 <0.01
Hospital stay (d) 8 203 233 0.002, 68% WMD = -2.53 -3.50, -1.57 <0.01
Overall complications 8 203 233 0.70, 0% RR = 0.47 0.22, 1.01 0.05
Tumor size (cm) 8 203 233 0.10, 42% WMD = -0.77 -1.23, -0.31 <0.01
Recurrence 5 130 165 0.95, 0% RR = 1.01 0.39, 2.63 0.99
  1. CI, confidence interval; LAP, laparoscopic surgery; OPEN, open surgery; RR, risk ratio; WMD, weighted mean difference.