Table 3 Univariable and multivariable analyses of factors in relation to overall survival

Age/years

 ≥ 60 versus  < 60

1.072 (0.376–3.063)

0.896

Gender

 (M vs F)

1.149 (0.351–3.7571)

0.818

BMI

 ≥ 25 versus < 25

1.055 (0.365–3.051)

0.921

Diabetes/hyperglycemia, n (%)

 Yes versus no

1.182 (0.328–4.258)

0.798

 TNM stage (AJCC 8th)

 III + IV versus I + II

12.845 (4.417–37.353)

0.001

4.859 (1.515–15.584)

0.008

Surgical type

 RN versus PN

2.67 (0.744–9.583)

0.132

Tumor size (cm)

 ≥ 7 versus  < 7

3.557 (1.24–10.205)

0.018

1.819 (0.60–5.51)

0.290

Subtype, n (%)

 I versus II

0.342 (0.106–1.098)

0.071

Serum album (g/l)

 < 40 versus  ≥ 40

0.641 (0.214–1.92)

0.427

CHOL

 < 4.9 versus  ≥ 4.9

0.988 (0.344–2.838)

0.983

NLR

 ≥ 2.39 versus < 2.39

12.007 (2.675–53.886)

0.001

5.557 (1.059–29.149)

0.043

BUN/Cr

 ≥ 20 versus < 20

0.373 (0.082–1.706)

0.203