Journal
TRANSACTIONS OF THE ROYAL SOCIETY OF TROPICAL MEDICINE AND HYGIENE
Volume 106, Issue 6, Pages 363-370Publisher
OXFORD UNIV PRESS
DOI: 10.1016/j.trstmh.2012.03.002
Keywords
TB; HIV; TB/HIV; HAART; CD4; WHO clinical stage
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Preceding studies on morbidities and mortalities associated with TB in a cohort of HIV care indicate high incidence of TB development and premature death among patients on highly active antiretroviral treatment (HAART). This study aims to measure the rate of TB, TB mortality, and associated risk factors following commencement of HAART in a cohort of patients attending HIV care in Ethiopia. Patient information was gathered from the hospital register and analysed. TB incidence peaked within six months of HAART initiation, and dropped from 3.3/100 person-years in the first year to 0.4/100 person-years in the fifth year. At baseline, risk factors associated with TB included WHO clinical stage 3 HIV infection (adjusted hazard ratio (AHR) 2.53; 95% Cl 1.70-3.70), WHO clinical stage 4 HIV infection (AHR, 3.86; 95% CI 2.54-5.86), and patients who were bed ridden >50% a day (AHR, 1.52; 95% Cl 1.13-2.05). The rate of mortality was 6.9% (incidence 2.8 per 100 person-years) and 57% of deaths occurred in the first six months of HAART initiation. Multivariate Cox model indicated WHO clinical stage 4 HIV infection, CD4+ cell count <50 cells/mu l, bed ridden >50% a day, and TB after HAART initiation as baseline independent predictors of mortality. Additional evidence shows that regular CD4+monitoring of patients before HAART initiation as well as earlier HAART initiation decreases death, and regular clinical staging decreases TB incidence. (C) 2012 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.
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