Tuberculosis after Initiation of Antiretroviral Therapy in Low‐Income and High‐Income Countries
We examined the incidence of and risk factors for tuberculosis during the first year of highly active antiretroviral therapy in low‐income (4540 patients) and high‐income (22,217 patients) countries. Although incidence was much higher in low‐income countries, the reduction in the incidence of tuberculosis associated with highly active antiretroviral therapy was similar: the rate ratio for months 7–12 versus months 1–3 was 0.48 (95% confidence interval, 0.36–0.64) in low‐income countries and 0.36 (95% confidence interval, 0.26–0.50) in high‐income countries. A low CD4 cell count at the start of therapy was the most important risk factor in both settings.
Received 13 April 2007; accepted 21 July 2007; electronically published 22 October 2007.
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