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Initiation of antiretroviral therapy based on the 2015 WHO guidelines.

Author: 
Kuznik A; Iliyasu G; Habib AG; Musa BM; Kambugu A; Lamorde M
Source: 
AIDS. 2016 Nov 28; 30(18):2865-2873.
Abstract: 

OBJECTIVE: In 2015, the WHO recommended initiation of antiretroviral therapy (ART) in all HIV-positive patients regardless of CD4 cell count. We evaluated the cost-effectiveness of immediate versus deferred ART initiation among patients with CD4 cell counts exceeding 500cells/mul in four resource-limited countries (South Africa, Nigeria, Uganda, and India). DESIGN: A 5-year Markov model with annual cycles, including patients at CD4 cell counts more than 500 cells/mul initiating ART or deferring therapy until historic ART initiation criteria of CD4 cell counts more than 350 cells/mul were met. METHODS: The incidence of opportunistic infections, malignancies, cardiovascular disease, unscheduled hospitalizations, and death, were informed by the START trial results. Risk of HIV transmission was obtained from a systematic review. Disability weights were based on published literature. Cost inputs were inflated to 2014 US dollars and based on local sources. Results were expressed in cost per disability-adjusted life years averted and measured against WHO cost-effectiveness thresholds. RESULTS: Immediate initiation of ART is associated with a cost per disability-adjusted life years averted of -$317 [95% confidence interval (CI): -$796-$817] in South Africa; -$507 (95% CI: -$765-$837) in Nigeria; -$136 (-$382-$459) in Uganda; and -$78 (-$256-$374) in India. The results are largely driven by the impact of ART on reducing the risk of new HIV transmissions. CONCLUSIONS: In HIV-positive patients with CD4 counts above 500 cells/mul in the four studied countries, immediate initiation of ART versus deferred therapy until historic eligibility criteria are met is cost-effective and likely even cost-saving over time.

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Year: 
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Document Number: 
391053
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