Variable

Total

Survivors (n = 80)

Non-survivors

(n = 25)

Odds ratio

95% CI

P-value

Length of stay (d)

28 (21 - 45)

29 (21 - 45)

27 (21 - 41)

0.99

0.97 - 1.01

0.34

Surgical site infection

Yes/No

23/82

18/62

22.5%

5/20

20.0%

0.86

0.28 - 2.62

1

Anastomotic leakage

Yes/No

26/79

21/59

26.3%

5/20

20.0%

0.70

0.23 - 2.1

0.61

Pneumonia

Yes/No

21/84

13/67

16.3%

9/16

36.0%

2.90

1.06 - 7.96

<0.05

Metastasis within 2 years

Yes/No

32/73

16/64

20%

16/9

64.0%

7.111

2.66 - 19.02

<0.001

Postoperative chemotherapy

Yes/No

32/73

19/61

23.8%

13/12

52.0%

3.48

1.36 - 8.89

0.01

Postoperative radiation

Yes/No

12/93

8/72

10%

4/21

16.0%

1.71

0.47 - 6.26

0.47