G Ladep, N; Agbaji, OO; Agaba, PA; Muazu, A; Ugoagwu, P; Imade, G; Cooke, G; ... Kanki, P; + view all G Ladep, N; Agbaji, OO; Agaba, PA; Muazu, A; Ugoagwu, P; Imade, G; Cooke, G; Vivas, L; McCormack, S; Taylor-Robinson, SD; Idoko, J; Kanki, P; - view fewer (2013) Hepatitis B Co-Infection is Associated with Poorer Survival of HIV-Infected Patients on Highly Active Antiretroviral Therapy in West Africa. Journal of AIDS & Clinical Research , 01 (S3) , Article 006. 10.4172/2155-6113.S3-006.

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Abstract

Background: Hepatitis B has been reported to be high in HIV-infected African populations. However, the impact of this co-infection on the survival of HIV-infected Africans on long-term highly active antiretroviral therapy (HAART) remains poorly characterised. We investigated the impact of HBV/HIV co-infection on survival of HIV infected patients undergoing antiretroviral therapy in a West African population. Methods: This was a clinic-based cohort study of HIV-infected adults enrolled in Nigeria, West Africa. Study subjects (9,758) were screened for hepatitis B and hepatitis C at HAART initiation. Kaplan-Meier survival and Cox proportional hazards models were used to estimate probability of survivaland toidentify predictors of mortality respectively, based on hepatitis B surface antigen status. All patients had signed an informed written consent before enrolment into the study; and we additionally obtained permission for secondary use of data from the Harvard institutional review board. Results: Patients were followed up for a median of 41 months (interquartile range: 30-62 months) during which, 181 (1.9%) patients died. Most of the deaths; 143 (79.0%) occurred prior to availability of Tenofovir. Among those that were on antiretroviral therapy, hepatitis B co-infected patients experienced a significantly lower survival than HIV mono-infected patients at 74 months of follow up (94% vs. 97%; p=0.0097). Generally, hepatitis B co-infection: HBsAg-positive/HIV-positive (Hazards Rate [HR]; 1.5: 95% CI 1.09-2.11), co-morbid tuberculosis (HR; 2.2: 95% CI 1.57-2.96) and male gender (HR; 1.5: 95% CI 1.08-2.00) were significantly predictive of mortality. Categorising the patients based on use of Tenofovir, HBV infection failed to become a predictor of mortality among those on Tenofovircontaining HAART. Conclusions: HBsAg-positive status was associated with reduced survival and was an independent predictor of mortality in this African HIV cohort on HAART. However, Tenofovir annulled the impact of HBV on mortality of HIV patients in the present study cohort.

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