Table 1 Baseline characteristics

Median age, years (IQR)

65 (58-72)

63 (54-69)

0.074

 Male

35 (67)

48 (64)

0.710

ASA status, n (%)

0.757

 ASA I

11 (21)

12 (16)

 ASA II

14 (27)

20 (27)

 ASA III

27 (52)

43 (57)

Preoperative ECOG score, n (%)

0.890

 0

11 (21)

18 (24)

 1

32 (62)

43 (57)

 2

9 (17)

14 (19)

 Cardiovascular

49 (94)

71 (95)

1.000

 Diabetes type 2

7 (14)

10 (13)

0.983

 Peptic ulcer disease

9 (17)

14 (19)

0.845

 Chronic obstructive pulmonary disease

4 (8)

5 (7)

1.000

Competing diseases, n (%)

0.783

 Cholelithiasis

8 (15)

12 (16)

 Colorectal cancer

2 (4)

4 (5)

 Kidney cancer

1 (2)

0 (0)

Median body mass index kg/m² (IQR)

27.1 (23.4-33.2)

27.1 (24.1-33.7)

0.923

Tumor localization, n (%)

1.000

 Cardia

14 (27)

19 (25)

 Body

14 (27)

21 (28)

 Antrum

15 (29)

21 (28)

 Subtotal invasion

4 (8)

6 (8)

 Total invasion

5 (9)

8 (11)

Cases complicated with, n (%)

0.688

 Bleeding

21 (41)

31 (41)

 Stenosis

22 (42)

35 (47)

 Proximal

10

16

 Distal

12

19

 Both

9 (17)

9 (12)

Spread to adjacent organs, n (%)

28 (54)

48 (64)

0.251

 Abdominal esophagus

6 (12)

10 (13)

 Large and small intestine

8 (15)

12 (16)

 Pancreas capsule

4 (8)

6 (8)

 Colon mesentery root

2 (4)

4 (5)

 Diaphragm

0 (0)

3 (4)

 Transverse colon

2 (4)

3 (4)

 Duodenum

6 (11)

10 (13)

Metastases (M1), n (%)

18 (35)

26 (35)

0.995

 Liver

2 (4)

3 (4)

 Liver and ovaries

0 (0)

2 (3)

 Liver and peritoneum

1 (2)

2 (3)

 Liver and lungs

2 (4)

1 (1)

 Liver and in the peritoneal fluid

1 (2)

3 (4)

 Ovaries

0 (0)

2 (3)

 Ovaries and lungs

0 (0)

2 (3)

 Lungs

2 (4)

2 (3)

 Peritoneum

5 (10)

5 (7)

 Peritoneum and in the peritoneal fluid

0 (0)

2 (3)

 Peritoneal fluid

5 (10)

2 (3)