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Home >> Publications >> Association between hepatitis B co-infection and elevated liver stiffness among HIV-infected adults in Lusaka, Zambia.

Publication

Author(s):

Vinikoor MJ, Mulenga L, Siyunda A, Musukuma K, Chilengi R, Moore CB, Chi BH, Davies MA, Egger M, Wandeler G; International Epidemiologic Databases to Evaluate AIDS in Southern Africa (IeDEA-SA).

Pub Title:

Association between hepatitis B co-infection and elevated liver stiffness among HIV-infected adults in Lusaka, Zambia.

Pub Date:

Nov 1 2016

Pub Region(s):

Southern Africa

Journal:

Title: 
Trop Med Int Health

PubMed: 27499385.
Pub PDF:

OBJECTIVE: To describe liver disease epidemiology among HIV-infected individuals in Zambia.

METHODS: We recruited HIV-infected adults (≥18 years) at antiretroviral therapy initiation at two facilities in Lusaka. Using vibration controlled transient elastography, we assessed liver stiffness, a surrogate for fibrosis/cirrhosis, and analysed liver stiffness measurements (LSM) according to established thresholds (>7.0 kPa for significant fibrosis and >11.0 kPa for cirrhosis). All participants underwent standardised screening for potential causes of liver disease including chronic hepatitis B (HBV) and C virus co-infection, herbal medicine, and alcohol use. We used multivariable logistic regression to identify factors associated with elevated liver stiffness.

RESULTS: Among 798 HIV-infected patients, 651 had a valid LSM (median age, 34 years; 53% female). HBV co-infection (12%) and alcohol use disorders (41%) were common and hepatitis C virus co-infection (<1%) was rare. According to LSM, 75 (12%) had significant fibrosis and 13 (2%) had cirrhosis. In multivariable analysis, HBV co-infection as well as male sex, increased age and WHO clinical stage 3 or 4 were independently associated with LSM >7.0 kPa (all P < 0.05). HBV co-infection was the only independent risk factor for LSM >11.0 kPa. Among HIV-HBV patients, those with elevated ALT and HBV viral load were more likely to have significant liver fibrosis than patients with normal markers of HBV activity.

CONCLUSIONS: HBV co-infection was the most important risk factor for liver fibrosis and cirrhosis and should be diagnosed early in HIV care to optimise treatment outcomes.

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Citation:

Vinikoor MJ, Mulenga L, Siyunda A, Musukuma K, Chilengi R, Moore CB, Chi BH, Davies MA, Egger M, Wandeler G; International Epidemiologic Databases to Evaluate AIDS in Southern Africa (IeDEA-SA). Association between hepatitis B co-infection and elevated liver stiffness among HIV-infected adults in Lusaka, Zambia. Trop Med Int Health. 2016 Nov;21(11):1435-1441. doi: 10.1111/tmi.12764. PubMed PMID: 27499385.