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Table 2 Univariate and multivariate analyses of risk factors of HBsAg sero-positivity, HBV exposure among mother participants in rural Nanoro, Burkina Faso, 2018

From: The changing epidemiology of hepatitis B and C infections in Nanoro, rural Burkina Faso: a random sampling survey

 

n

%

HBsAg positivity (n = 15)

Exposure (HBsAg or HBcAb positive) a (n = 214)

Univariate analysisb

Multivariate analysisc

Univariate analysisb

Multivariate analysisd

n(+)

OR

(95%CI)

p value

aOR

(95%CI)

p value

n(+)

OR

(95%CI)

p value

aOR

(95%CI)

p value

Age group (years)

[18–29]

80

33.3

7

1.0

     

71

1.0

  

1.0

  

[29–39]

108

45.0

6

0.6

0.2–1.9

0.397

–

–

–

94

0.9

0.3–2.1

0.723

0.9

0.3–2.3

0.788

[39–60]

52

21.7

2

0.4

0.1–2.1

0.288

   

49

2.1

0.5–8.0

0.293

2.1

0.5–8.9

0.304

Occupation

Farmer

224

93.3

13

1.0

  

–

  

201

1.0

  

–

  

others

16

6.7

2

2.3

0.5–11.3

0.298

   

13

0.5

0.1–1.9

0.300

   

Partner occupation

Farmer

213

88.7

12

1.0

  

1.0

  

189

1.0

     

Civil servant

6

2.5

0

–

  

–

  

5

0.6

0.1–5.7

0.684

–

  

others

21

8.8

3

2.8

0.7–10.8

0.137

3.7

0.9–15.2

0.074

20

2.5

0.3–19.8

0.373

   

Schooling status

Unschooled

195

81.3

11

1.0

  

–

–

–

173

1.0

     

Primary

23

9.6

2

1.6

0.3–7.7

0.561

   

22

2.8

3.6–21.8

0.326

2.7

0.4–21.7

0.333

Secondary

22

9.2

2

1.7

0.3–8.1

0.522

   

19

0.8

0.2–2.9

0.743

0.8

0.2–3.2

0.791

Birth place

Health center

79

32.9

5

1.0

  

–

–

 

68

1.0

     

Home birth

105

43.8

6

0.9

0.3–3.1

0.861

  

–

93

1.3

0.5–3.0

0.613

   

Unknown

56

23.3

4

1.1

0.3–4.4

0.851

   

53

2.9

0.8–10.8

0.121

   

Pregnancy

No

217

90.4

13

1.0

  

–

–

–

195

1.0

  

–

  

Yes

23

9.6

2

1.5

0.3–7.1

0.612

   

19

0.5

0.2–1.7

0.294

   

Genital mutilation

No

140

58.3

11

1.0

  

1.0

0.1–1.3

0.133

124

1.0

     

Yes

100

41.7

4

0.5

0.2–1.6

0.232

0.4

  

90

1.2

0.5–2.7

0.726

   

Marital status

Married

238

99.2

14

1.0

  

–

  

213

1.0

  

–

  

Unmarried

2

0.8

1

16.0

0.9–269.5

0.054

   

1

0.1

0.0–1.9

0.134

   

Birth assistance

Health Skilled

79

32.9

5

1.0

  

–

  

68

1.0

  

–

  

Traditional skilled

83

34.6

5

0.9

0.3–3.4

0.936

   

74

1.3

0.5–3.4

0.552

   

Family member

14

5.8

0

–

–

–

   

12

1.0

0.2–4.9

0.971

   

other

64

26.7

5

1.3

0.3–4.5

0.730

   

60

2.4

0.7–8.0

0.146

   

Know MTCT

No

192

80.0

9

1.0

  

–

  

170

1.0

  

–

  

Yes

48

20.0

6

2.9

1.0–8.6

0.054

   

44

1.4

0.5–4.3

0.535

   

Heard about hepatitis

No

118

49.2

5

1.0

  

1.0

  

105

1.0

  

–

  

Yes

122

50.8

10

2.0

0.7–6.1

0.210

1.3

  

109

1.0

0.5–2.3

0.928

   
  1. In multivariate analysis, covariates were selected by stepwise procedure (method of increasing and decreasing based on p-value threshold: both of probability to enter and probability to leave are 0.3)
  2. a hepatitis B virus exposure (HBV): Sero-positivity to hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb), MTCT, mother to child transmission;
  3. b χ2– Test or Fisher Exact Test
  4. c Logistic regression analysis with the stepwise method: R2 = 0.0582, model p-value < 0.04, n = 240
  5. d Logistic regression analysis with the stepwise method: R2 = 0.0129, model p-value < 0.03, n = 240
  6. OR, Odds Ratio, aOR, adjusted Odds Ratio, CI, Confident Interval
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BMC Infectious Diseases

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