Open surgery

(n = 99)

n (%)

Laparoscopic surgery

(n = 46)

n (%)

P value

Age (years)

<65

41 (70.7)

22 (47.8)

≥65

58 (29.3)

24 (52.2)

0.478

Gender

Male

51 (51.5)

28 (60.9)

Female

48 (48.5)

18 (39.1)

0.371

Tumor maximal size (cm)

<2 cm

4 (4)

3 (6.5)

2 - 5 cm

53 (53.5)

29 (63)

>5 cm

42 (42.5)

14 (30.5)

0.355

Mitotic index (per 50 HPF)

<5

57 (57.6)

32 (69.6)

5-10

26 (26.3)

14 (30.4)

>10

16 (16.1)

0

0.015

Risk category†

Very low risk

39 (39.4)

26 (56.5)

Low risk

16 (16.2)

11 (23.9)

Intermediate risk

17 (63)

7 (15.2)

High risk

27 (27.4)

2 (4.4)

0.010

Location of tumor

Cardia

13 (13.1)

3 (6.5)

Fundus, high body

56 (56.6)

25 (54.3)

Middle third stomach

28 (28.3)

12 (26.1)

Lower third stomach

2 (2)

6 (13.1)

0.041

Tumor growth pattern

Intraluminal growth

44 (44.4)

22 (47.8)

Extragastric growth

55 (55.6)

24 (52.2)

0.723