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Table 3 Summary of characteristics in PS and non-PS studies

From: Effect of endoscopic resection on short-term surgical outcomes of subsequent laparoscopic gastrectomy: a meta-analysis

Characteristics PS/non-PS
Studies Mean difference (95% CI) Heterogeneity
Baseline information
 Male 4/5 0.94 [0.65,1.35]; P=0.73/1.83 [1.43, 2.34]; P<0.01 I2=0%; P=0.91/I2=13%; P=0.33
 Age 4/3 2.66 [0.96, 4.36]; P=0.002/6.21 [4.24, 8.19]; P<0.01 I2=25%; P=0.26/I2=57%; P=0.10
 BMI 4/4 −0.13 [−0.60, 0.34]; P=0.58/0.21 [−0.16, 0.58]; P=0.26 I2=0%; P=0.98/I2=38%; P=0.18
 T1-T2 3/4 2.04 [0.40, 10.28]; P=0.39/1.79 [0.30, 10.74]; P=0.53 I2=0%; P=0.49/I2=65%; P=0.04
 T3-T4 3/4 0.49 [0.10, 2.48]; P=0.39/0.56 [0.09, 3.37]; P=0.53 I2=0%; P=0.49/I2=65%; P=0.04
Surgical methods and reconstruction methods
 TG 2/2 1.56 [0.42, 5.88]; P=0.51/0.87 [0.53, 1.44]; P=0.60 I2=0%; P=0.98/I2=0%; P=0.72
 SG 2/2 0.64 [0.17, 2.41]; P=0.51/1.14 [0.72, 1.80]; P=0.58 I2=0%; P=0.98/I2=0%; P=0.73
 B-I or B-II 2/2 0.91 [0.55, 1.52]; P=0.72/1.13[0.31, 4.09]; P=0.85 I2=0%; P=0.84/I2=77%; P=0.04
 Roux-en-Y 2/2 1.10 [0.66, 1.83]; P=0.72/0.96 [0.30, 3.04]; P=0.94 I2=0%; P=0.84/I2=67%; P=0.08
Short-term outcomes
 Blood loss 2/4 12.97 [−60.39, 86.34]; P=0.73/−6.44 [−17.08, 4.20]; P=0.24 I2=91%; P=0.0007/I2=11%; P=0.34
 Operation time 3/4 −5.27 [−13.08, 2.55]; P=0.19/−6.48[−13.02, 0.06]; P=0.05 I2=0%; P=0.39/I2=24%; P=0.27
 Retrieved LNs 3/3 −2.33 [−7.87, 3.21]; P=0.41/−3.14 [−5.01, −1.27]; P=0.001 I2=82%; P=0.004/I2=0%; P=0.70
 Metastatic LNs 4/3 0.96 [0.50, 1.81]; P=0.89/0.52 [0.30, 0.92]; P=0.02 I2=0%; P=0.62/I2=12%; P=0.32
 PHS 2/4 0.60 [−1.25,2.45]; P=0.52/0.53 [−0.37, 1.43]; P=0.25 I2=0%; P=1.00/I2=0%; P=0.95
Postoperative complications
 Overall 4/5 1.25 [0.81, 1.92]; P=0.32/1.11[0.80, 1.54]; P=0.53 I2=0%; P=0.75/I2=15%; P=0.32
 AL 3/4 1.18 [0.22, 6.28]; P=0.84/1.21 [0.49, 2.97]; P=0.68 I2=0%; P=0.77/I2=0%; P=0.45
 AS 2/2 2.27 [0.59, 8.74]; P=0.24/0.86 [0.23, 3.28]; P=0.83 I2=0%; P=0.49/I2=0%; P=0.92
 Ileus 2/5 1.90 [0.45, 8.01]; P=0.38/ 1.66 [0.85, 3.25]; P=0.14 I2=0%; P=0.72/I2=39%; P=0.16
 Abdominal infection 2/3 0.46 [0.05, 4.47]; P=0.50/2.06 [0.87, 4.87]; P=0.10 I2=0%; P=0.76/I2=0%; P=0.61
 Gastric stasis 2/3 0.60 [0.15, 2.36]; P=0.47/0.79 [0.27, 2.28]; P=0.66 I2=0%; P=0.38/I2=0%; P=0.98
 Wound infection 3/3 2.31 [0.78, 6.86]; P=0.13/1.33[0.53, 3.36]; P=0.55 I2=0%; P=0.65/I2=0%; P=0.96
 PL 3/2 2.17 [0.59, 7.97]; P=0.24/0.80 [0.23, 2.77]; P=0.72 I2=0%; P=0.37/I2=9%; P=0.29
 PB 2/2 0.71 [0.18, 2.81]; P=0.63/0.67 [0.12, 3.59]; P=0.64 I2=0%; P=0.96/I2=0%; P=0.91
  1. Abbreviations: ER endoscopic resection, LG laparoscopic gastrectomy, PS propensity score matching, TG total gastrectomy, SG subtotal gastrectomy, LNs lymph nodes, PHS postoperative hospital stay, AL anastomosis leakage, AS anastomotic stenosis, PL pancreatic leakage, PB postoperative bleeding
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World Journal of Surgical Oncology

ISSN: 1477-7819

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