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Table 2 Association of explanatory variables and hepatitis B virus infection among pregnant women attending antenatal care at Bahir city, 2013 (n = 318)

From: Sero-prevalence and risk factors of hepatitis B virus and human immunodeficiency virus infection among pregnant women in Bahir Dar city, Northwest Ethiopia: a cross sectional study

Variables HBsAg COR (CI) AOR (CI) P- value
  Positive N (%) Negative N (%)    
History of blood transfusion    8.8 (2.70-29.19)*** 3.7 (9.02-14.84) 0.01
Yes 6 (16.2) 31 (83.8)    
No 6 (2.1) 275 (97.9)    
History of tooth extraction    7.2 (2.19-23.49)** 2.2 (0.46-10.08) 0.32
Yes 7 (12.3) 50 (87.7)    
No 5 (1.9) 256 (98.1)    
Tooth tattooing    8.4 (2.44-28.74)** 2.9 (0.67-12.70) 0.15
Yes 8 (11.9) 59 (88.1)    
No 4 (1.6) 247 (98.4)    
Body tattooing    5.1 (5.36-19.32)** 5.7 (1.24-26.50) 0.02
Yes 9 (7.4) 113 (92.6)    
No 3 (1.5) 193 (98.5)    
History of surgery    12.9 (3.84-43.37)*** 11.1 (2.64-46.88) 0.001
Yes 6 (21.4) 22 (78.6)    
No 6 (2.1) 284 (97.9)    
History of unsafe injection    10.2 (3.07-33.73)*** 5.6 (1.44-22.19) 0.01
Yes 7 (15.9) 37 (84.1)    
No 5 (1.8) 269 (98.2)    
History of abortion    6.6 (1.96-21.99)** 0.6 (0.08-4.29) 0.58
Yes 5 (14.3) 30 (85.7)    
No 7 (2.5) 306 (96.2)    
HIV/AIDS status    8.5 (2.33-31.07** 0.4 (0.57-2.19) 0.26
Positive 4 (19.0) 17 (81.0)    
Negative 8 (2.7) 289 (97.3)    
  1. Key: COR (crude odds ratio), AOR (adjusted odds ratio).
  2. ***P-value <0.001, **0.05 < p-value >0.001.