Table 2 Perioperative-related indicators between the Reinforced group and Not Reinforced group

Operative data

 operative time for Total gastrectomy, min, median(range)

125(107 ~ 154)

130(105 ~ 161)

z = -0.777

0.437

 operative time for Distal gastrectomy, min, median(range)

181(162 ~ 205)

188(167 ~ 206)

z = -1.645

0.100

 time for reinforcement of stapled duodenal stump, min, ± SD

-

4.948 ± 1.9813

-

-

 Blood loss, ml, median(range)

123(92 ~ 159)

125(90 ~ 160)

z = -0.031

0.975

Pathologic data

 Distance from distal resection margin for Distal gastrectomy (cm) (± SD)

4.8 ± 2.14

5.1 ± 2.30

t = -0.669

0.504

 Retrieved lymph nodes, n, median(range)

33(19 ~ 44)

32(21 ~ 45)

z = -0.688

0.492

 Positive margins, n (%)

2(1.0%)

3(0.7%)

χ² = 0.096

0.757

Postoperative recovery

 First flatus, d, median(range)

2(1 ~ 3)

2(1 ~ 3)

z = -0.107

0.915

 First exhaust, h, median(range)

49(41 ~ 56)

50(40 ~ 59)

z = -0.305

0.76

 Postoperative hospital stay, days, (± SD)

10.90 ± 3.664

10.42 ± 2.524

t = 1.906

0.057

Related complications

 Intra-abdominal infection

4(2.0%)

7(1.7%)

χ² = 0.041

0.839

 Wound infection

9(4.4%)

8(2.0%)

χ² = 2.968

0.085

 Bleeding

2(1.0%)

3(0.7%)

-

0.757

 obstruction

5(2.4%)

10(2.5%)

χ² = 0.012

0.913

 Fluid collection and abscess

4(2.0%)

10(2.5%)

χ² = 0.156

0.693

 Pancreatic leakage ^a

5(2.4%)

16(3.9%)

χ² = 0.916

0.339

 Anastomotic leakage

4(2.0%)

7(1.7%)

χ² = 0.041

0.839

 Duodenal stump leakage

5(2.4%)

3(0.7%)

-

0.126

 Reoperation for duodenal stump leakage

2(1.0%)

0

-

0.046*

 Reoperation for duodenal stump leakage-related death

1(0.5%)

0

-

0.158

 Clavien–Dindo morbidity ^b

χ² = 1.802

0.406

 I–II, n (%)

38(18.5%)

60(14.7%)

 III–IV, n (%)

3(1.5%)

4(1.0%)