Table 2 Univariate analysis of factors predicting patient survival

Age (year)

0.043

• ≤ 60

• > 60

59.4

37.6

Ref

1.57(1.03,2.11)

BMI (Kg/m²)

• ≤ 18

• 18.1–25

• ≥ 25

31.5%

57.9%

35.6%

1.81(1.12,2.52

Ref

1.61(1.03,2.2)

P:0.001

-

0.008

Sex

0.58

• Female

• Male

46.2%

51.6%

Ref

1.09(0.75,2.11)

Marital status

0.87

• Unmarried

• Married

47.9%

48.8%

Ref

1.02(0.88,3.56)

Smoking status

0.087

• No

• yes

45.4%

51.6%

Ref

1.12(0.99,4.11)

Education

• Illiterate

• < Diploma

• >=Diploma

38.6%

45.6%

50.7%

Ref

0.85(0.64,1.07)

0.77(0.53,1.3)

-

0.061

0.083

Alcohol consumption

• Yes

• NO

• Missing

34.4%

44.2%

45.5%

Ref

0.78(0.51,1.01)

0.75 (0.50,1.01)

-

0.089

0.084

 H- pylori history

• positive

• negative

• Missing

40.5%

47.6%

44.4%

Ref

0.85(0.64,1.08)

0.90(0.74,1.07)

-

0.075

0.11

Family history of GC

• Yes

• No

45.7%

49.2%

1.07(0.75,2.71)

Ref

0.45

Tumor Location

• Cardia

• Fundus

• Antrum

• Missing

45.5%

47.3%

50.5%

-

Ref

0.96(0.81,1.12)

0.9(0.76,1.11)

-

-

0.057

0.068

Tumor Type

• Adenoma carcinoma

• Lymphoma

• Other & Unknown

56.2

30.28

42.5

0.81(0.74,0.87)

0.88(0.65,1.56)

Ref

0.0025

0.54

-

Number of examined LNs

• < 15

• ≥ 15

36%

49%

Ref

0.72(0.61,0.84)

-

0.001

NLNs

• 1–9

• 10–15

• ≥ 16

23.9%

47.2%

65.2%

Ref

0.53(0.36,0.71)

0.38(0.22,0.55)

-

0.004

0.001

Tumor size (cm)

• ≤ 5

• > 5

• Unknown

52.3%

45.2%

46.4%

Ref

1.21(1.01,2.65)

-

-

0.064

Metastasis

• Yes

• No

33.5

58.2

1.75(1.16,2.36

Ref

0.001

Tumor stage

• T1

• T2

• T3

• Unknown & missing

76.2%

50.2%

24.2%

-

Ref

1.6(1.09,2.12)

3.2(1.56,4.83)

-

-

0.001

0.001

-

Differentiation grade

• Well

• Moderate

• Poor

• Unknown & missing

64.2

50.2

23.5

-

Ref

1.28(1.08,1.49)

2.7(1.44,3.97)

-

-

0.023

0.001

-