Table 5 Univariate and multivariate analyses on OS of non-elderly patients

Gender (male vs. female)

0.834(0.459–1.516)

0.552

Smoking (yes vs. no)

1.042(0.663–1.639)

0.858

Drinking (yes vs. no)

1.090(0.688–1.726)

0.714

Tumor size, mm(≤ 5 vs. >5)

1.878(1.177–2.995)

0.008

1.452(0.893–2.359)

0.133

Differentiation (poorly vs. well and moderately)

0.926(0.561–1.528)

0.764

SII(> 489.52 vs. ≤ 489.52)

3.970(2.334–6.751)

< 0.001

3.383(1.961–5.838)

< 0.001

Albumin, g/L(≤ 39.85 vs. > 39.85)

0.462(0.277–0.769)

0.003

0.400(0.238–0.674)

0.001

CEA,ug/ml(≤ 2.17 ug/ml vs. > 2.17 ug/ml)

1.208(0.768–1.901)

0.413

CA199,u/ml(≤ 21 u/mL vs. > 21 u/mL)

1.110(0.660–1.867)

0.693

CA125,u/ml(≤ 14.6 u/ml vs. > 14.6 u/ml)

1.783(1.124–2.830)

0.014

1.592(0.992–2.554)

0.054

WBC, 10⁹/L(≤ 6.525 vs. > 6.525)

0.981(0.616–1.561)

0.934

Type of surgery

0.104

 DG

1(reference)

 PG

1.801(1.039–3.123)

 TG

1.296(0.723–2.324)

TNM stage

0.004

0.090

 I

1(reference)

1(reference)

 II

1.644(0.549–4.920)

2.111(0.686–6.493)

 III

3.539(1.423–8.799)

2.776(1.091–7.063)