Table 1 Basic information of enrolled families and H. pylori infection risks factors.

From: The epidemiological study of family-based Helicobacter pylori screening and its benefits: a cross-sectional study

 

Total no. of household

Infected

Household

Uninfected

household

Household

infection rate (%)

OR

(95%CI)

*P value

Adjusted OR

(95%CI)

*P value

Annual household income (thousand yuan)

< 100

330

210

120

63.64

Reference

   

100–300

167

115

52

68.86

1.26

(0.85–1.88)

0.248

  

> 300

17

13

4

76.47

1.86

(0.59–5.82)

0.288

  

Resident location

Rural

7

4

3

65.88

Reference

   

City

507

334

173

57.14

0.69

(0.15–3.12)

0.63

  

Living area(m²)

< 60

24

18

6

75

Reference

   

60–120

218

137

81

62.84

0.24

(0.56 − 0.22)

0.244

  

> 120

272

183

89

67.28

0.44

(0.69 − 0.26)

0.44

  

Duration of cohabitation (years)

< 5

44

27

17

61.36

Reference

   

5–10

113

72

41

63.72

1.11

(0.54–2.27)

0.784

  

> 10

357

233

124

65.27

1.18

(0.62–2.25)

0.609

  

Family size

2

222

133

89

59.91

Reference

   

3

144

94

50

65.28

1.26

(0.81–1.95)

0.302

1.47

(0.85–2.55)

0.171

4

80

55

25

68.75

1.47

(0.86–2.54)

0.163

1.70

(0.86–3.68)

0.126

5

45

36

9

80

2.68

(1.23–5.83)

< 0.05

3.05

(1.14–8.20)

< 0.05

Above 6

23

20

3

86.97

4.46

(1.29–15.46)

< 0.05

5.03

(1.19–21.33)

< 0.05

Generations

1

157

98

59

62.42

Reference

   

2

252

156

96

61.9

0.98

(0.649–1.476)

0.917

0.77

(0.45–1.32)

0.346

3

105

78

27

74.29

1.74

(1.01–2.996)

< 0.05

0.81

(0.35–1.88)

0.63

Dishwashing

Tap water

421

271

150

64.37

Reference

   

In a basin

93

67

26

72.04

1.43

(0.87–2.34)

0.16

  

Tableware sterilisation

No sterilisation

327

221

106

67.58

Reference

   

Disinfection cabinet

94

60

34

63.83

0.85

(0.52–1.37)

0.496

  

Other

93

57

36

61.29

0.76

(0.47–1.22)

0.258

  

Sources of drinking water

Boiled water

401

259

142

64.59

Reference

   

Tap water

23

19

4

82.61

2.60

(0.87–7.80)

0.087

  

Bottled water

53

34

19

64.15

0.98

(0.54–1.78)

0.95

  

Well water

12

8

4

66.67

1.10

(0.33–3.71)

0.882

  

Other

25

18

7

72

1.41

(0.58–3.46)

0.453

  

Individual dining

Yes

55

33

22

60

Reference

   

No

459

305

154

66.45

1.32

(0.74–2.34)

0.342

  

Serving chopsticks and spoons

Yes

87

52

35

59.77

Reference

   

No

427

286

141

66.98

1.37

(0.85–2.19)

0.198

  

Pets in household

Yes

30

19

11

63.33

Reference

   

No

484

319

165

65.91

1.12

(0.52–2.41)

0.773

  
  1. Infected household is defined as a household with at least one H. pylori -infected family member. Uninfected household is defined as a household without any H. pylori -infected family member. Household infection rate is defined as percentage of infected household among all households. *P value was calculated by univariate logistic regression, p < 0.05 indicates that infection risk increase/decrease significantly compared with the reference groups. These are independent risk/protective factors for household H. pylori infection compared with reference group. P value was calculated by multivariate logistic regression, and was adjusted with items of p < 0.1 in univariate logistic regression.
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