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  • Title: Risk factors for hepatitis B virus infection among pregnant women in Lagos, Nigeria.
    Author: Rabiu KA, Akinola OI, Adewunmi AA, Omololu OM, Ojo TO.
    Journal: Acta Obstet Gynecol Scand; 2010 Aug; 89(8):1024-8. PubMed ID: 20636241.
    Abstract:
    OBJECTIVES: To determine the risk factors for hepatitis B virus infection among pregnant women in Lagos, Nigeria, and the possible implications for hepatitis B prevention in the country. DESIGN: Prospective case control study. SETTING: Lagos Island Maternity Hospital. METHODS: Between 1 August 2006 and 31 January 2007, risk factors for hepatitis B infection were determined amongst pregnant women using a structured questionnaire. The women were tested for hepatitis B surface antigen (HBsAg) as part of routine antenatal care. Univariate and multivariate analyses were carried out using logistic regression. MAIN OUTCOME MEASURES: Risk factors for hepatitis B virus infection among pregnant women. RESULTS: Of the 1,052 women attending the antenatal clinic, 6.08% (n = 64) were positive for HBsAg. A total of 61 HBsAg positive and 183 negative controls were interviewed. The significant risk factors for HBV infection were an early age of sexual debut below 19 years (adjusted OR = 2.79; 95% CI = 1.44-5.40; p = 0.0023); history of multiple sexual partners (adjusted OR = 2.02; 95% CI = 1.02-3.98; p = 0.0427); and past history of sexually transmitted infection (adjusted OR = 2.61; 95% CI = 1.15-5.90; p = 0.0214). Of the HBsAg positive women, 45 (73.77%) had at least one of these risk factors while 91 (49.73%) of the controls had at least one risk factor. CONCLUSION: Screening pregnant for hepatitis B infection on the basis of risk factors may not be effective. Education on modification of lifestyle and sexual behavior as well as non-selective screening of pregnant women for HBV infection is recommended.
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