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    Risk factors of hepatitis B virus infection in Turkey: A population-based, case-control study
    (Baqiyatallah Research Center, 2011) Ozer, Ali; Yakupogullari, Yusuf; Beytur, Ali; Beytur, Leyla; Koroglu, Mehmet; Salman, Feyza; Aydogan, Fisun
    Background: Although the World Health Organization (WHO) classifies Turkey as a country with a moderate-high prevalence of hepatitis B virus (HBV) infection, there is little data on HBV transmission in this country. Objectives: To identify risk factors for HBV infection, we performed a retrospective case-control study between January 2007 and December 2009. Patients and Methods: Acute HBV patients and population controls were selected, and data from these groups were analyzed by logistic regression. method. Results: The study included 129 patients with acute HBV infection and 219 controls. Hemodialysis (OR:8.2, 95% Cl: 4.17-16.61, p < 0.05), having an HBsAg (+) spouse (OR: 4.3, 95% Cl:2.17-8.53, p < 0.05), living with an HBsAg (+) parent(s) (OR: 3.25, 95% CI:1.73-6.12, p < 0.05), and being male (OR: 1.34, 95% Cl: 0.82-2.21, p < 0.05) were independent risk factors that were potentially associated with HBV infection. More than one-third of female patients had a significantly higher risk (34.5% vs. 13.5%, p < 0.05) of acquiring HBV from their sexual partners. Hemodialysis was the most frequent risk factor (46.9% vs. 20%, x(2) = 10.45, p < 0.05) for patients aged over 31 years, and living with HBsAg (+) parents was a significantly higher risk factor (28.8% vs. 10.2%, x(2) = 6.15, p < 0.05) that is more likely to lead to HBVin patients aged under 30 years. Conclusions: This study suggests that persons in Turkey who undergo hemodialysis are at high risk for acquiring HBV. Having an HBsAg (+) spouse (sexual transmission) or living with HBsAg (+) parents (household transmission) are significant risk factors for HBV transmission. Vaccination appears to be better preventive method against the spread of HBV. (C) 2011 Kowsar M.P.Co. All rights reserved.