Table 2 The results of the multivariate logistic regression model to explore the GC-prone versus NUD-prone predictors

1

Age [> 50 – 60]

4.02

3.84 (2.56, 5.74)

< 0.001

+134

Age [> 60 – 70]

6.6

9.09 (5.7, 14.49)

< 0.001

+221

Age [> 70]

7.23

11.18 (6.36, 19.66)

< 0.001

+241

2

Ethnicity [Non-Fars]

2.66

2.43 (1.74, 3.41)

< 0.001

+89

3

Gender [Male]

3.55

3.27 (2.03, 5.26)

< 0.001

+119

4

Canned food [Ever]

0.01

1 (0.72, 1.39)

0.991

0

5

Carbonated soft drinks [Medium to high]

1

0.72 (0.49, 1.06)

0.095

−33

6

Cheese [Medium to high]

1.42

1.61 (1.15, 2.25)

0.006

+47

7

Chicken [Medium to high]

0.29

0.91 (0.67, 1.24)

0.548

−10

8

Coffee [Medium to high]

1.95

0.52 (0.18, 1.52)

0.231

−65

9

Cooking method [Other than boiling]

0.79

1.3 (0.95, 1.79)

0.102

+26

10

Cooking oil [Saturated or both]

0.61

1.23 (0.87, 1.72)

0.238

+20

11

Cooking salt [Medium to high]

0.61

1.23 (0.86, 1.75)

0.262

+20

12

Dinner time [Late]

1.03

1.41 (1.03, 1.93)

0.032

+34

13

Drinking water (childhood) [Other than city plumbing]

0.89

1.35 (0.89, 2.04)

0.161

+30

14

Eggs [Medium to high]

0.96

1.38 (1.01, 1.89)

0.044

+32

15

Fish [Medium to high]

0.19

1.07 (0.75, 1.51)

0.716

+6

16

Fruits [Medium to high]

0.3

0.9 (0.64, 1.28)

0.569

−10

17

Milk [Medium to high]

0.57

1.21 (0.87, 1.68)

0.259

+19

18

Minerals [Ever]

1.24

0.66 (0.43, 1.01)

0.055

−42

19

Pickled vegetables [Medium to high]

0.21

1.07 (0.74, 1.56)

0.717

+7

20

Processed meats [Medium to high]

0.22

0.93 (0.67, 1.29)

0.656

−7

21

Potato chips [Ever]

0.11

0.96 (0.68, 1.36)

0.83

−4

22

Red meat [Medium to high]

0.14

0.95 (0.7, 1.3)

0.767

−5

23

Salted food [Ever]

0.42

0.87 (0.47, 1.59)

0.646

−14

24

Smoked fish [Ever]

1.31

1.55 (0.84, 2.86)

0.161

+44

25

Smoked rice [Ever]

1.72

0.56 (0.33, 0.98)

0.041

−57

26

Table salt [Ever]

1.39

1.59 (1.14, 2.22)

0.007

+46

27

Tea [Medium to high]

0.3

1.1 (0.45, 2.7)

0.827

+10

28

Tea temperature [Hot]

1.58

1.7 (1.24, 2.33)

0.001

+53

29

Tuna fish [Ever]

0.94

0.73 (0.54, 0.99)

0.044

−31

30

Vegetables [Medium to high]

0.76

1.29 (0.9, 1.84)

0.164

+25

31

Vitamins [Ever]

1.81

0.55 (0.35, 0.85)

0.008

−60

32

Yogurt [Medium to high]

1.16

0.68 (0.47, 0.98)

0.036

−39

33

Colitis [Yes]

3.43

3.15 (0.66, 14.94)

0.148

+115

34

Diabetes [Yes]

0.24

0.92 (0.54, 1.56)

0.762

−8

35

Esophageal reflux [Yes]

0.36

0.89 (0.6, 1.3)

0.532

−12

36

Esophagitis [Yes]

0.29

1.1 (0.2, 6.14)

0.913

+10

37

Family history of GC [Yes]

0.64

1.24 (0.65, 2.36)

0.514

+21

38

Family history of GI cancers [Yes]

1.72

1.77 (1.14, 2.76)

0.011

+57

39

Family history of stomach operation [Yes]

0.6

1.22 (0.64, 2.35)

0.547

+20

40

Fatty liver [Yes]

2.59

0.42 (0.08, 2.3)

0.319

−87

41

Gastritis [Yes]

0.92

0.73 (0.48, 1.12)

0.151

−31

42

Personal history of GI cancers [Yes]

5.19

5.67 (1.87, 17.17)

0.002

+173

43

Personal history of stomach operation [Yes]

2.25

2.12 (0.64, 7.04)

0.218

+75

44

Alcohol [Ever]

0.12

1.04 (0.57, 1.9)

0.895

+4

45

Opium [Ever]

0.51

0.84 (0.5, 1.42)

0.521

−17

46

Smoking [Ever]

0.99

1.39 (0.96, 2.03)

0.084

+33

47

Waterpipe [Ever]

0.66

1.25 (0.72, 2.16)

0.433

+22

48

Passive smoking (childhood) [Ever]

0.95

1.37 (1, 1.89)

0.053

+32

49

Birth place [Rural]

1.69

0.57 (0.36, 0.9)

0.016

−57

50

Chemical exposure [Ever]

0.08

0.97 (0.64, 1.49)

0.903

−3

51

Crowdedness [> 2 per room]

0.23

0.93 (0.68, 1.27)

0.634

−8

52

Crowdedness (childhood) [> 2 per room]

1.14

0.68 (0.44, 1.07)

0.096

−38

53

Drinking water [Other than city plumbing]

0.98

1.39 (0.8, 2.4)

0.243

+33

54

Education [< 8 yrs]

0.42

0.87 (0.57, 1.32)

0.51

−14

55

Job-related physical activities [Low]

0.56

1.2 (0.79, 1.85)

0.395

+19

56

Marital status [Married]

2.28

2.15 (0.95, 4.83)

0.065

+76

57

Parents illiteracy (both) [Yes]

2.35

2.19 (1.5, 3.2)

< 0.001

+78

58

Physical exercise per week [Ever]

0.55

0.83 (0.6, 1.16)

0.274

−18

59

Refrigerator use [No]

0.79

0.77 (0.24, 2.45)

0.655

−26

60

Refrigerator use (childhood) [No]

1.39

0.63 (0.42, 0.95)

0.029

−46

61

Residence place [Rural]

2.3

2.16 (1.36, 3.42)

0.001

+77

62

Residence place (childhood) [Rural]

0.26

1.09 (0.67, 1.79)

0.729

+9

63

Residence type [Rented]

0.19

0.94 (0.63, 1.4)

0.756

−6

64

Residence type (childhood) [Rented]

1.85

0.54 (0.32, 0.9)

0.019

−62

65

Intercept (other unknown factors)

13.49

0.01 (0, 0.04)

< 0.001

−451