HIV-1 Incidence and HIV-1 Associated Mortality in a Cohort of Urban Factory Workers in Tanzania
Overview
Affiliations
Objective: To determine HIV-1 incidence and HIV-1 associated mortality in a prospective cohort study. To determine whether the cohort is suitable for studies aiming to determine the impact of interventions on HIV-1 incidence.
Methods: The study population was a cohort of 1772 urban factory workers (1478 men and 294 women) in northwest Tanzania. The study took place from October 1991 to September 1993. Outcome measures were HIV-1 seroconversion and death.
Results: HIV-1 incidence was 1.2 (95% CI 0.7-2.0) per 100 person-years (pyr). Crude annual mortality was 4.9 per 100 pyr in those with and 0.3 in those without HIV-1 infection, giving an age and sex adjusted mortality ratio of 12.9 (95% CI 5.4-30.7). Of all deaths, 62% were attributable to HIV-1 infection.
Conclusion: HIV-1 infection was a major public health problem, being the major cause of death in this adult population. At an HIV-1 incidence of 1.2 per 100 pyr, a large cohort size would be required to evaluate the impact of interventions on HIV-1 incidence.
The History of the HIV/AIDS Epidemic in Africa.
Kagaayi J, Serwadda D Curr HIV/AIDS Rep. 2016; 13(4):187-93.
PMID: 27188298 DOI: 10.1007/s11904-016-0318-8.
Commentary: Questioning the HIV-AIDS Hypothesis: 30 Years of Dissent.
Karetnikov A Front Public Health. 2015; 3:193.
PMID: 26301215 PMC: 4528088. DOI: 10.3389/fpubh.2015.00193.
Barnighausen T, Tanser F HIV Ther. 2010; 3(5):435-445.
PMID: 20448807 PMC: 2862641. DOI: 10.2217/hiv.09.33.
Lopman B, Nyamukapa C, Mushati P, Mupambireyi Z, Mason P, Garnett G Int J Epidemiol. 2008; 37(1):88-105.
PMID: 18203774 PMC: 5793995. DOI: 10.1093/ije/dym255.
Holmgren B, Da Silva Z, Vastrup P, Larsen O, Andersson S, Ravn H Retrovirology. 2007; 4:85.
PMID: 18042276 PMC: 2222662. DOI: 10.1186/1742-4690-4-85.