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Table 2 Results of meta-analysis comparing baseline characteristics between LAP and OPEN

From: Meta-analysis comparing laparoscopic versus open resection for gastric gastrointestinal stromal tumors larger than 5 cm

Baseline characteristic Studies LAP OPEN Heterogeneity Overall 95% CI of P
(P, I 2) effect size overall effect
Gender (male/female) 6 56/57 64/58 0.37, 0% OR = 0.85 0.50, 1.43 0.53
Age 5    0.24, 27% WMD = −2.29 −6.24, 1.65 0.25
Tumor size 6    <0.05, 69% WMD = −0.54 −1.23, 0.15 0.13
Tumor location
 Upper /Middle 5 47/33 52/64 0.23, 29% OR = 1.27 0.66, 2.42 0.47
 Upper/ Lower 5 47/15 52/8 0.27, 23% OR = 0.64 0.25, 1.66 0.36
 Mitotic index (≤5/>5) 5 55/31 68/40 0.69, 0% OR = 0.96 0.52, 1.75 0.89
Risk classification
 Intermediate/High 5 41/27 36/37 0.57, 0% OR = 1.58 0.81, 3.12 0.18
  1. LAP laparoscopic resection, OPEN open resection