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Table 4 Univariate and multivariate analyses of factors associated with HBV infection

From: Seroprevalence and factors associated with hepatitis B virus infection among the hill tribe youths, northern Thailand

Factors

n

%

OR

95%CI

p-value

ORAdj

95%CI

p-value

Sex

 Male

312

37.3

1

     

 Female

524

62.7

0.70

0.47–1.06

0.707

   

Age (years)

 15–17

492

58.9

1

  

1

  

 18–20

248

29.7

2.14

1.38–3.34

0.001a

2.13

1.35-3.29

0.001a

 21–24

96

11.4

2.39

1.33–4.30

0.004a

2.39

1.05-3.90

0.005a

Tribe

 Akha

251

30.0

3.05

1.05–8.87

0.040a

3.12

1.07-9.12

0.037a

 Lahu

110

13.2

4.30

1.41–13.10

0.010a

3.71

1.21-11.41

0.022a

 Hmong

132

15.8

3.65

1.20–11.02

0.022a

3.84

1.26-11.69

0.018a

 Yao

136

16.3

2.09

0.66–6.60

0.207.

2.46

0.77–7.87

0.127

 Karen

130

15.5

2.02

0.63–6.45

0.232

1.86

0.58–5.98

0.293

 Lisu

77

9.2

1

  

1

  

Marital status

 Single

791

94.6

1

     

 Other

45

5.4

2.26

1.11–4.60

0.025a

   

Number of family members (persons)

 1–3

92

11.0

1

     

 4–6

529

63.3

1.40

0.67–2.92

0.361

   

 7–10

181

21.7

1.47

0.65–3.31

0.343

   

  ≥ 11

34

4.1

1.97

0.64–6.04

0.233

   

Religion

 Buddhism

491

58.7

1

     

 Christianity

339

40.6

0.81

0.53–1.24

0.345

   

 Islam

6

0.7

1.22

0.14–10.62

0.855

   

Education

 Illiterate

21

2.5

1

     

 Primary school

31

3.7

2.77

0.51–14.90

0.235

   

 High school

655

78.4

1.36

0.31–5.94

0.651

   

 Vocational school

129

15.4

1.64

0.35–7.62

0.527

   

Occupation

 Unemployed

62

7.4

1

     

 Student

685

81.9

0.83

0.39–1.75

0.632

   

 Farmer

22

2.6

2.20

0.68–7.14

0.186

   

 Labor

67

8.1

1.03

0.39–2.73

0.948

   

Income

 No

745

89.1

1

     

 Yes

91

10.9

1.03

0.52–1.90

0.993

   

Smoker

 No

726

86.8

1

     

 Yes

110

13.2

1.34

0.77–2.33

0.287

   

Alcohol use

 No

656

78.5

1

     

 Yes

180

21.5

1.36

0.86–2.16

0.187

   

Methamphetamine use

 No

817

97.7

1

     

 Yes

19

2.3

1.24

0.35–4.34

0.732

   

Heroin use

        

 No

823

98.4

1

     

 Yes

13

1.6

1.20

0.26–5.50

0.811

   

Crystal methamphetamine use

 No

825

98.7

1

     

 Yes

11

1.3

0.65

0.08–5.18

0.690

   

Tattooed

 No

725

86.7

1

     

 Yes

111

13.3

1.13

0.63–2.00

0.674

   

Ear piercing

 No

302

36.1

1

     

 Yes

534

63.9

0.94

0.62–1.43

0.788

   

History of blood transfusion

 No

803

96.1

1

     

 Yes

33

3.9

0.65

0.19–2.16

0.484

   

History of medical surgery

 No

733

87.7

1

     

 Yes

103

12.3

1.04

0.57–1.90

0.889

   

Injection from illegal practitioners

 No

803

96.1

1

     

 Yes

33

3.9

0.65

0.19–2.16

0.484

   

Acupuncture

 No

821

98.2

1

     

 Yes

15

1.8

1.01

0.22–4.56

0.984

   

Used a shared toothbrush

 No

656

78.5

1

     

 Yes

180

21.5

1.02

0.62–1.65

0.937

   

History of hepatitis B vaccination

 Yes

71

8.5

1

     

 No

298

35.7

1.58

0.64–3.90

0.319

   

 Not sure

261

31.2

1.96

0.79–4.83

0.143

   

 Unknown

206

24.6

1.56

0.61–3.97

0.346

   

Family history of hepatitis

 No

481

57.5

1

     

 Yes

24

2.9

0.58

0.13–2.53

0.471

   

 Not sure

120

14.4

1.05

0.59–1.87

0.852

   

 Unknown

211

25.2

0.89

0.55–1.46

0.670

   

Work experience outside the village

 No

693

82.9

1

     

 Yes

143

17.1

1.92

1.20–3.07

0.006a

1.77

1.18-2.98

0.004a

Work experience abroad

 No

826

98.8

1

     

 Yes

10

1.2

2.88

0.73–11.30

0.130

   

Sexual experience

 Yes

243

29.1

1.10

0.71–1.71

0.648

   

 No

593

70.9

1

     

Used a condom during first sexual intercourse

 Yes

120

49.4

1

     

 No

109

44.9

1.49

0.70–3.17

0.293

   

 Does not remember

14

5.7

1.26

0.25–6.23

0.775

   

Number of sexual partners (person)

 None

593

84.7

1

  

1

  

 1

67

9.6

0.43

0.15–1.22

0.113

0.57

0.28–1.19

0.099

  ≥ 2

40

5.7

2.97

1.90–4.30

0.033a

2.66

1.96-3.87

0.047a

  1. a Significant at α = 0.05