RESUMO
OBJECTIVES: To determine the prevalence and distribution of hepatitis B virus (HBV) infection in Mianyang. METHODS: Data were extracted from the 12th five-year National Science and Technology Major Projects-Integrated Prevention and Control of Major Infectious Diseases in Mianyang. A two-level logistic regression model was established to determine factors associated with HBV infection. RESULTS: About 4.91% of people in Mianyang were HBsAg positive, which increased with age. HBV infection showed aggregation at townships. Governmental spending ≥¥1 000 000 on public health was a protective factor in the regression model; whereas, age, male gender, medical workers, absent from HBV vaccination, more than 80 g/d alcohol consumption were risk factors of HBV infection. CONCLUSIONS: Mianyang had medium level of HBV infections. But high HBV prevalence can be found in some townships. The known behavior risk factors all exist in Mianyang, which can serve as a screening tool for identifying high risk populations.
