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Table 2 Pooled short-term outcomes of meta-analysis

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

  1. Abbreviations: WMD Weighted mean difference, RR Risk ratio.