Table 1 Clinicopathological characteristics

Age (Median, range)

77 (75–87)

77 (75–87)

77 (75–83)

0.808

Sex

0.123

 Male

90 (63)

70 (60)

20 (77)

 Female

52 (37)

46 (40)

6 (23)

Surgical approach

0.695

 Open

130 (92)

105 (91)

25 (96)

 Laparoscopy

12 (8)

11 (9)

1 (4)

Surgical procedure

0.861

 Distal gastrectomy

65 (46)

53 (46)

12 (46)

 Pylorus preserving gastrectomy

43 (30)

35 (30)

8 (30)

 Proximal gastrectomy

12 (8)

9 (8)

3 (12)

 Total gastrectomy

22 (16)

19 (16)

3 (12)

BMI (Median, range) ^††

22.4 (16.5–32.2)

22.5 (16.7–32.2)

22.1 (16.5–30.5)

0.652

GNRI (Median, range) ^†††

104.5 (89.0-128.0)

104.5 (89.0-125.3)

104.0(89.9–128.0)

0.791

Charlson Score

0.726

 0

82 (58)

69 (59)

13 (50)

 1

27 (19)

22 (19)

5 (20)

 2

20 (14)

15 (13)

5 (20)

 3

7 (5)

5 (4)

2 (7)

 4

2 (1)

2 (2)

0 (0)

 5

0 (0)

0 (0)

0 (0)

 6

3 (2)

2 (2)

1 (3)

 7

1 (1)

1 (1)

0 (0)

Current smoking history

0.695

 +

57 (40)

48 (41)

9 (35)

 -

85 (60)

68 (59)

17 (65)

%VC (Median, range) ^††††

104 (53–175)

104 (53–175)

103 (75–132)

0.99

FEV1% (Median, range)^{†††††}

73.5 (34–96)

73.5 (34–92)

74 (58–96)

0.386

Sliding hernia

1.000

 +

44 (31)

36 (31)

8 (31)

 -

98 (69)

80 (69)

18 (69)

Preoperative pneumonia

0.129

 +

62 (44)

47 (41)

15 (58)

 -

80 (56)

69 (59)

11 (42)

Pathological TNM stage

0.346

 T1aN0

59(41)

49 (42)

10 (38)

 T1aN1

1 (1)

0(0)

1(4)

 T1bN0

71 (50)

58 (50)

13 (50)

 T1bN1

11 (8)

9 (8)

2 (8)