ODG

LADG

p value

Number of cases (male/female)

36 (21/15)

169 (82/87)

0.29^‡

Age (years, mean ± SD)

73.1 ± 15.8

63.6 ± 11.6

0.0013^*†

Clinical stage

IA

12

142

<0.001^*‡

IB

5

21

0.97^‡

II

3

5

0.29^‡

IIIA

4

0

0.0002^*‡

IIIB

4

0

0.0002^*‡

IV

8

0

<0.001^*‡

Other

0

1

0.39^‡

cT

1a

2

63

0.0004^*‡

1b

10

83

0.02^*‡

2

5

16

0.61^‡

3

3

5

0.30^‡

4a

15

0

<0.001^*‡

4b

1

0

0.39^‡

Other

0

2

0.78^‡

cN

0

21

162

<0.001^*‡

1

6

4

0.001^*‡

2

6

2

0.0001^*‡

3

2

0

0.03^*‡

X

1

1

0.78^‡

cM

1

3

0

0.003^*‡

0

33

168

0.017^*‡

X

0

1

0.39^‡

Reconstruction method

B-I (manual)

1

74

<0.001^*‡

B-I (posterior-wall perforation)

8

48

0.58^‡

B-I (HDST)

2

27

0.17^‡

R-Y

25

20

<0.001^*‡

Surgical time (min, mean ± SD)

245.1 ± 48.9

300.4 ± 62.0

<0.001^*†

Bleeding volume(mL, mean ± SD)

333.6 ± 175.3

101.0 ± 112.4

<0.001^*†

Number of days of postoperative hospitalization (mean ± SD)

27.4 ± 20.5

18.5 ± 5.2

0.014^*†

Number of lymph nodes dissected (mean ± SD)

23.7 ± 12.8

25.9 ±13.3

0.35^†

Incidence of postoperative complications (%)

5 (13.9)

21 (12.4)

0.97^‡

Incidence of procedural accidents (%)^§

0 (0.0)

2 (1.2)

0.78^‡