Table 2 Univariate and multivariate analysis of different prognostic Variables for overall survival in gastric cancer patients by Cox regression analysis

No. of patients

P-value

Regression coefficient(SE)

Hazard ratios(95% confidence internal)

P-value

Vitamin D status

0.018

-0.536(0.228)

0.585(0.374-0.914)

0.019

   < 50 nmol/L

114

   ≥ 50 nmol/L

83

Tumor size

< 0.001

0.523(0.235)

1.687(1.064-2.673)

0.026

   < 5 cm

102

   ≥ 5 cm

89

Tumor position

0.011

-0.540(0.148)

0.583(0.436-0.779)

<0.001

   Cardia/gastric fundus

59

   Gastric body

50

   Gastric antrum/pylorus

88

Borrmann type

0.001

-0.392(0.262)

0.676(0.404-1.129)

0.135

   I/II

73

   III/IV

124

T classification

<0.001

1.891(0.567)

6.623(2.181-20.115)

0.001

   T1/T2

41

   T3/T4

154

   N classification

<0.001

0.859(0.292)

2.362(1.333-4.186)

0.003

   N0/N1

76

   N2/N3

114

Distant metastasis

<0.001

2.374(0.352)

10.739(5.383-21.424)

<0.001

   Positive

29

   Negative

168

Symptom duration

0.001

-0.435(0.238)

0.647(0.406-1.031)

0.067

   < 4 months

96

   ≥ 4 months

99