Background: The transmission of human immunodeficiency virus (HIV) and hepatitis B virus (HBV)/hepatitis C virus (HCV) is similar in modes/routes and related risk factors. Understanding the long-term changing epidemiology of HIV, HBV, and HCV coinfection is important for evaluation of existing disease control policy and healthcare planning. We describe HBV and HCV coinfection based on the latest 2 nationwide molecular epidemiologic surveys of HIV infection in mainland China in 2007 and 2015.
Methods: Seroprevalence of HBV and HCV infections was determined in antiretroviral treatment (ART)-naive people living with HIV-1 (PLWH) from 2 nationwide surveys conducted in 2007 and 2015 from 31 provinces, municipalities, and autonomous regions in mainland China. Demographic characteristics, route of HIV transmission, and CD4+ cell count were captured in the national database. Logistic regression was used to study the association between coinfection status and possible relevant risk factors.
Results: A total of 6611 (n = 1571 in 2007; n = 5040 in 2015) ART-naive PLWH met the eligibility criteria. The prevalence of HBV and HCV coinfection in PLWH decreased from 61.1% in 2007 to 18.0% in 2015. Significant coinfection proportion reduction was found for HCV (from 53.7% to 4.9%), and a moderate decrease for HBV (17.8% to 13.9%). There was an increase of HBV/HIV coinfections among 12 provinces, municipalities, and autonomous regions, associated with domestic migration (adjusted odds ratio, 6.34 [95% confidence interval, 1.82-22.09]).
Conclusions: A significant decrease of HBV and HCV coinfection in PLWH was observed. Due to limited health resources and high transmission efficiency, concerted efforts should be made to further control viral hepatitis epidemics in HIV-positive populations.
Keywords: HBV; HCV; HIV; coinfection; epidemiology.
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