Edward J. Mills, PhD, MSc, LLM; Celestin Bakanda, MSc; Josephine Birungi, MBChB; Keith Chan, MSc; Nathan Ford, PhD, MPH; Curtis L. Cooper, MD, MSc; Jean B. Nachega, MD, PhD; Mark Dybul, MD; Robert S. Hogg, PhD, MA
Little is known about the effect of combination antiretroviral therapy (cART) on life expectancy in sub-Saharan Africa.
To estimate life expectancy of patients once they initiate cART in Uganda.
Prospective cohort study.
Public sector HIV and AIDS disease-management program in Uganda.
22 315 eligible patients initiated cART during the study period, of whom 1943 were considered to have died.
All-cause mortality rates were calculated and abridged life tables were constructed and stratified by sex and baseline CD4 cell count status to estimate life expectancies for patients receiving cART. The average number of years remaining to be lived by patients who received cART at varying age categories was estimated.
After adjustment for loss to follow-up, crude mortality rates (deaths per 1000 person-years) ranged from 26.9 (95% CI, 25.4 to 28.5) in women to 43.9 (CI, 40.7 to 47.0) in men. For patients with a baseline CD4 cell count less than 0.050 × 109 cells/L, the mortality rate was 67.3 (CI, 62.1 to 72.9) deaths per 1000 person-years, whereas among persons with a baseline CD4 cell count of 0.250 × 109 cells/L or more, the mortality rate was 19.1 (CI, 16.0 to 22.7) deaths per 1000 person-years. Life expectancy at age 20 years for the overall cohort was 26.7 (CI, 25.0 to 28.4) additional years and at age 35 years was 27.9 (CI, 26.7 to 29.1) additional years. Life expectancy increased substantially with increasing baseline CD4 cell count. Similar trends are observed for older age groups.
A small (6.4%) proportion of patients were lost to follow-up, and it was imputed that 30% of these patients had died. Few patients with a CD4 cell count greater than 0.250 × 109 cells/L initiated cART.
Ugandan patients receiving cART can expect an almost normal life expectancy, although there is considerable variability among subgroups of patients.
Canadian Institutes of Health Research.
Combination antiretroviral therapy has dramatically increased life expectancy in persons with HIV infection in the United States and northern Europe, but its effect in resource-constrained countries is unknown.
Treatment with combination regimens increased life expectancy to nearly normal levels in persons infected with HIV in Uganda. Women derived greater benefit than men, as did patients who began therapy at higher CD4 cell counts.
Some data were missing. Regimens were older and more toxic than those in use in developed countries.
Antiretroviral therapy for HIV infection can dramatically increase life expectancy in Africa, where the burden of disease is greatest.
cART = combination antiretroviral therapy.
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Mills EJ, Bakanda C, Birungi J, Chan K, Ford N, Cooper CL, et al. Life Expectancy of Persons Receiving Combination Antiretroviral Therapy in Low-Income Countries: A Cohort Analysis From Uganda. Ann Intern Med. 2011;155:209–216. doi: 10.7326/0003-4819-155-4-201108160-00358
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Published: Ann Intern Med. 2011;155(4):209-216.
HIV, Infectious Disease.
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