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Table 2 Subgroup analysis of comparison between LPG-DT and LTG

From: A meta-analysis of comparison of proximal gastrectomy with double-tract reconstruction and total gastrectomy for proximal early gastric cancer

  No. of studies OR/WMD 95%CI p Heterogeneity Effect model
I2 p
Age 6 0.18 −3.07-3.42 0.92 69% 0.007 Random
Gender (male) 7 1.89 1.26–2.84 0.002 0% 0.50 Fixed
ASA (I) 3 0.43 0.22–0.83 0.01 1% 0.36 Fixed
BMI (kg/m2) 5 −0.40 −1.76-0.96 0.57 86% < 0.001 Random
Tumor size (cm) 4 −0.94 −1.26-(−0.62) < 0.001 0% 0.59 Fixed
T-stage (I) 4 2.21 1.17–4.17 0.01 29% 0.24 Fixed
N-Stage (N+) 4 0.77 0.34–1.71 0.52 0% 0.53 Fxied
Stage (I) 6 2.70 1.35–5.39 0.005 0% 0.61 Fixed
Operation time (min) 6 −10.43 −25.64-4.77 0.18 69% 0.007 Random
Blood loss (ml) 4 3.74 −57.37-64.84 0.90 88% < 0.001 Random
Proximal resection margin (cm) 4 −0.97 −1.80-(−0.14) 0.02 77% 0.004 Random
Distal resection margin (cm) 4 −8.30 −9.57-(−7.03) < 0.001 76% 0.006 Random
No. of retrieved LNs 5 −11.28 −13.52-(−9.04) < 0.001 26% 0.25 Fixed
Length of hospital stay (day) 6 −0.21 −1.21-0.80 0.68 10% 0.35 Fixed
C-D grade I or more 4 0.87 0.36–2.13 0.76 65% 0.04 Random
C-D grade II or more 4 0.73 0.44–1.21 0.22 0% 0.46 Fixed
C-D grade III or more 3 0.35 0.12–1.07 0.07 51% 0.15 Fixed
Cholecystitis 4 1.41 0.44–4.52 0.56 0% 0.64 Fixed
Fluid collection 3 0.74 0.30–1.86 0.53 45% 0.16 Fxied
Leakage 6 0.81 0.34–1.94 0.64 0% 0.68 Fixed
  1. LPG-DT, Laparoscopic proximal gastrectomy with double-tract reconstruction; LTG, Laparoscopic total gastrectomy; OR, Odds ratios; WMD, Weighted mean difference; 95%CI, 95% Confidence interval; ASA, American Society of Anesthesiologist; BMI, Body mass index; LNs, Lymph nodes; C-D, Clavien-Dindo