Table 2 Factors associated with HBsAg positivity amongst pregnant women in Siem Reap, Cambodia

Age (mean = 28.3 ± 5.7)

 15–19

70

0 (0)

0

-

-

0

-

-

 20–24

338

15 (4.44)

1

(Reference)

 -

1

(Reference)

 -

 25–29

540

20 (3.70)

0.83

[0.42–1.64]

0.589

0.79

[0.39–1.58]

0.501

 30–34

391

20 (5.12)

1.16

[0.58–2.30]

0.670

1.14

[0.57–2.28]

0.711

 35–39

180

10 (5.56)

1.27

[0.55–2.88]

0.573

1.36

[0.59–3.19]

0.468

  ≥ 40

46

2 (4.35)

0.98

[0.22–4.42]

0.978

1.19

[0.25–5.61]

0.818

Education level

  ≤ Primary School

324

13 (4.01)

1

(Reference)

 -

1

(Reference)

 -

 High School

857

35 (4.08)

1.02

[0.53–1.95]

0.956

0.99

[0.49–1.98]

0.984

 University

384

19 (4.95)

1.25

[0.61–2.56]

0.551

1.37

[0.61–3.03]

0.441

Occupation of Household

 Farmer/Fisherman/Laborer

255

6 (2.35)

1

(Reference)

 -

1

(Reference)

 -

 Public Officer

217

10 (4.61)

2.00

[0.72–5.61]

0.185

2.18

[0.73–6.40]

0.158

 Privat Company Employee

495

26 (5.25)

2.30

[0.93–5.66]

0.070

2.37

[0.92–6.11]

0.074

 Self-Employed

598

25 (4.18)

1.81

[0.73–4.47]

0.198

1.92

[0.75–4.91]

0.171

Number of children

 1–3

1469

63 (4.29)

1

(Reference)

 -

-

-

-

  ≥ 4

96

4 (4.17)

0.97

[0.35–2.72]

0.954

-

-

-

Blood transfusion history

 No

1527

65 (4.26)

1

(Reference)

 -

-

-

-

 Yes

38

2 (5.29)

1.25

[0.29–5.30]

0.763

-

-

-

Surgical history

 No

1361

62 (4.56)

1

(Reference)

 -

1

(Reference)

 -

 Yes

204

5 (2.45)

0.53

[0.21–1.33]

0.173

0.5

[0.19–1.28]

0.152

Ever received HepB

 Yes

236

3 (1.27)

0.25

[0.08–0.81]

0.020

0.22

[0.06–0.72]

0.011

 No

1313

64 (4.87)

1

(Reference)

 -

1

(Reference)

 -

Don’t know

16

0 (0)

0

-

-

-

-

-