Table 2 Distribution of Hepatitis B virus (HBsAg) in subjects with different risk factors at Shashemene General Hospital, 2008.
Characteristics | Total (%) | Number (%) positive HBsAg | 95% CI for HBsAg prevalence | chi-square value | P value |
|---|---|---|---|---|---|
HBV vaccination | Â | Â | Â | Â | Â |
   Non vaccinated | 377(98.2) | 21(5.6) | 3.5, 8.3 | 0.967 | 0.336 |
   Vaccinated | 7(1.8) | 1(14.3) | 0.3, 57.9 |  |  |
History of Hospital admission | Â | Â | Â | Â | Â |
   No | 369(96.1) | 19(5.2) | 3.1, 7.9 | 5.886 | 0.015 |
   Yes | 15(3.9) | 3(20.0) | 4.3, 48.1 |  |  |
Unsafe inject | Â | Â | Â | Â | Â |
   No | 370(96.4) | 18(4.9) | 2.9, 7.6 |  |  |
   Yes | 14(3.6) | 4(28.6) | 8.4, 58.1 | 14.0368 | <0.001 |
Multiple sexual partner | Â | Â | Â | Â | Â |
   No | 251(65.4) | 14(5.6) | 3.1,9.2 |  |  |
   Yes | 133(34.6) | 8(6.0) | 2.6,11.5 | 0.031 | 0.860 |
STIs | Â | Â | Â | Â | Â |
   No | 376 (97.9) | 21(5.6) | 3.5,8.4 |  |  |
   Yes | 8(2.1) | 1(12.5) | 0.3, 52.7 | 0.694 | 0.405 |
Invasive procedure* | Â | Â | Â | Â | Â |
   No | 335 (87.2) | 15(4.5) | 2.5,7.3 |  |  |
   Yes | 49 (12.8) | 7 (14.3) | 5.9,27.2 | 7.61 | 0.006 |
HIV status | Â | Â | Â | Â | Â |
   No | 327(85.2) | 14(4.3) | 2.4,7.1 |  |  |
   Yes | 57 (14.8) | 8(14.0) | 6.3,25.8 | 8.55 | 0.003 |