Table 1 Univariate and multivariate analyses of clinicopathological variables in relation to overall survival in patients undergoing potentially curative resection for gastric cancer

Age

1.03 (1.02–1.04)

1.02 (1.01–1.03)

Sex

 Male

Reference

 Female

1.00 (0.83–1.21)

BMI

0.94 (0.92–0.97)

ASA score

 1

Reference

 2

1.29 (1.09–1.53)

 3

1.18 (0.75–1.86)

Tumor location

 Upper

Reference

Reference

 Middle

1.05 (0.83–1.33)

0.92 (0.72–1.17)

 Lower

0.59 (0.48–0.73)

0.79 (0.64–0.97)

 Mixed

1.56 (1.22–1.98)

1.32 (1.03–1.70)

Tumor size (cm)

1.02 (1.01–1.02)

1.01 (1.00–1.01)

Histologic type

 Differentiated

Reference

 Undifferentiated

1.22 (0.99–1.51)

Vascular invasion

 Negative

Reference

 Positive

1.69 (1.41–2.02)

Perineural invasion

 Negative

Reference

 Positive

1.63 (1.33–1.99)

pTNM stage

 I

Reference

Reference

 II

2.65 (1.82–3.68)

2.00 (1.38–2.90)

 III

9.74 (7.05–13.46)

6.80 (4.91–9.41)

Adjuvant chemotherapy

 No

Reference

 Yes

1.10 (0.93–1.31)

Hb

  < 125

Reference

Reference

  ≥ 125

0.51 (0.43–0.60)

0.77 (0.65–0.91)

LMR

  < 3.4

Reference

Reference

  ≥ 3.4

0.59 (0.50–0.70)

0.78 (0.65–0.91)

PLR

  < 161.3

Reference

  ≥ 161.3

1.70 (1.44–2.00)