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Table 2 Distribution of Hepatitis B virus (HBsAg) in subjects with different risk factors at Shashemene General Hospital, 2008.

From: Prevalence of Hepatitis B surface antigen (HBsAg) among visitors of Shashemene General Hospital voluntary counseling and testing center

Characteristics Total (%) Number (%) positive HBsAg 95% CI for HBsAg prevalence chi-square value P value
HBV vaccination      
   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      
   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      
   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      
   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      
   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*      
   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      
   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
  1. * abortion, tooth extraction, ear piercing, and tattooing