Table 5 Factors associated with the prevalence of hepatitis B virus infection among adult intrafamilial household contacts of pregnant women index cases attending antenatal care clinics in the central Ethiopia region, 2023 (n = 370)

Sex

Male

158(48.3)

9(20.9)

0.28(0.13,0.61)

0.09(0.03,0.37) ^*

0.001

Female

169(51.7)

34(79.1)

1

1

Family Size

Small family (1–3)

106(32.4)

11(25.6)

0.86(0.41,1.82)

0.81(0.26,2.57)

0.723

Medium family (4–6)

199(60.9)

24(55.8)

1

1

Large family (≥ 7)

22(6.7)

8(18.6)

3.02(1.210,7.516)

4.3(1.34,13.98) ^*

0.015

Duration of stay with index case

≥ 6 months

268(82)

32(74.4)

1

1

< 6 months

59(18)

11(25.6)

0.46(0.17,1.06)

0.30(0.11,0.81) ^*

0.017

Genital discharge

Yes

110(33.6)

25(58.1)

2.74(1.43,5.24)

3.14(1.60,6.15) ^*

0.001

No

217(66.4)

18(41.9)

1

1

Unsafe sex

Yes

54(16.5)

13(30.2)

2.19(1.07,4.47)

2.37(1.13,4.97) ^*

0.023

No

273(83.5)

30(69.8)

1

1

History of mortality due to hepatitis in family

Yes

17(5.2)

6(14)

2.96(1.10,7.97)

3.03(1.09,8.42) ^*

0.034

No

310(94.8)

37(86)

1

1