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Health benefits, costs, and cost-effectiveness of earlier eligibility for adult antiretroviral therapy and expanded treatment coverage: a combined analysis of 12 mathematical models

The Lancet global health, 2014-01, Vol.2 (1), p.e23-e34 [Peer Reviewed Journal]

Eaton et al. Open Access article distributed under the terms of CC BY-NC-ND ;2014 Eaton et al. Open Access article distributed under the terms of CC BY-NC-ND ;ISSN: 2214-109X ;EISSN: 2214-109X ;DOI: 10.1016/S2214-109X(13)70172-4 ;PMID: 25083415

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Title:
Health benefits, costs, and cost-effectiveness of earlier eligibility for adult antiretroviral therapy and expanded treatment coverage: a combined analysis of 12 mathematical models
Author: Eaton, Jeffrey W, PhD ; Menzies, Nicolas A, MPH ; Stover, John, MA ; Cambiano, Valentina, MS ; Chindelevitch, Leonid, PhD ; Cori, Anne, PhD ; Hontelez, Jan A C, PhD ; Humair, Salal, PhD ; Kerr, Cliff C, PhD ; Klein, Daniel J, PhD ; Mishra, Sharmistha, MD ; Mitchell, Kate M, PhD ; Nichols, Brooke E, MS ; Vickerman, Peter, Prof ; Bakker, Roel, PhD ; Bärnighausen, Till, DSc ; Bershteyn, Anna, PhD ; Bloom, David E, Prof ; Boily, Marie-Claude, PhD ; Chang, Stewart T, PhD ; Cohen, Ted, DPH ; Dodd, Peter J, PhD ; Fraser, Christophe, Prof ; Gopalappa, Chaitra, PhD ; Lundgren, Jens, Prof ; Martin, Natasha K, DPhil ; Mikkelsen, Evelinn, MSc ; Mountain, Elisa, MSc ; Pham, Quang D, MD ; Pickles, Michael, PhD ; Phillips, Andrew, Prof ; Platt, Lucy, PhD ; Pretorius, Carel, PhD ; Prudden, Holly J, MSc ; Salomon, Joshua A, Prof ; van de Vijver, David A M C, PhD ; de Vlas, Sake J, PhD ; Wagner, Bradley G, PhD ; White, Richard G, PhD ; Wilson, David P, PhD ; Zhang, Lei, PhD ; Blandford, John, PhD ; Meyer-Rath, Gesine, PhD ; Remme, Michelle, MSc ; Revill, Paul, PhD ; Sangrujee, Nalinee, PhD ; Terris-Prestholt, Fern, PhD ; Doherty, Meg, PhD ; Shaffer, Nathan, MD ; Easterbrook, Philippa J, Prof ; Hirnschall, Gottfried, MD ; Hallett, Timothy B, Prof
Subjects: Internal Medicine
Is Part Of: The Lancet global health, 2014-01, Vol.2 (1), p.e23-e34
Description: Summary Background New WHO guidelines recommend initiation of antiretroviral therapy for HIV-positive adults with CD4 counts of 500 cells per μL or less, a higher threshold than was previously recommended. Country decision makers have to decide whether to further expand eligibility for antiretroviral therapy accordingly. We aimed to assess the potential health benefits, costs, and cost-effectiveness of various eligibility criteria for adult antiretroviral therapy and expanded treatment coverage. Methods We used several independent mathematical models in four settings—South Africa (generalised epidemic, moderate antiretroviral therapy coverage), Zambia (generalised epidemic, high antiretroviral therapy coverage), India (concentrated epidemic, moderate antiretroviral therapy coverage), and Vietnam (concentrated epidemic, low antiretroviral therapy coverage)—to assess the potential health benefits, costs, and cost-effectiveness of various eligibility criteria for adult antiretroviral therapy under scenarios of existing and expanded treatment coverage, with results projected over 20 years. Analyses assessed the extension of eligibility to include individuals with CD4 counts of 500 cells per μL or less, or all HIV-positive adults, compared with the previous (2010) recommendation of initiation with CD4 counts of 350 cells per μL or less. We assessed costs from a health-system perspective, and calculated the incremental cost (in US$) per disability-adjusted life-year (DALY) averted to compare competing strategies. Strategies were regarded very cost effective if the cost per DALY averted was less than the country's 2012 per-head gross domestic product (GDP; South Africa: $8040; Zambia: $1425; India: $1489; Vietnam: $1407) and cost effective if the cost per DALY averted was less than three times the per-head GDP. Findings In South Africa, the cost per DALY averted of extending eligibility for antiretroviral therapy to adult patients with CD4 counts of 500 cells per μL or less ranged from $237 to $1691 per DALY averted compared with 2010 guidelines. In Zambia, expansion of eligibility to adults with a CD4 count threshold of 500 cells per μL ranged from improving health outcomes while reducing costs (ie, dominating the previous guidelines) to $749 per DALY averted. In both countries results were similar for expansion of eligibility to all HIV-positive adults, and when substantially expanded treatment coverage was assumed. Expansion of treatment coverage in the general population was also cost effective. In India, the cost for extending eligibility to all HIV-positive adults ranged from $131 to $241 per DALY averted, and in Vietnam extending eligibility to patients with CD4 counts of 500 cells per μL or less cost $290 per DALY averted. In concentrated epidemics, expanded access for key populations was also cost effective. Interpretation Our estimates suggest that earlier eligibility for antiretroviral therapy is very cost effective in low-income and middle-income settings, although these estimates should be revisited when more data become available. Scaling up antiretroviral therapy through earlier eligibility and expanded coverage should be considered alongside other high-priority health interventions competing for health budgets. Funding Bill & Melinda Gates Foundation, WHO.
Publisher: England: Elsevier Ltd
Language: English
Identifier: ISSN: 2214-109X
EISSN: 2214-109X
DOI: 10.1016/S2214-109X(13)70172-4
PMID: 25083415
Source: DOAJ Directory of Open Access Journals

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Health benefits, costs, and cost-effectiveness of earlier eligibility for adult antiretroviral therapy and expanded treatment coverage: a combined analysis of 12 mathematical models

Eaton et al. Open Access article distributed under the terms of CC BY-NC-ND ;2014 Eaton et al. Open Access article distributed under the terms of CC BY-NC-ND ;ISSN: 2214-109X ;EISSN: 2214-109X ;DOI: 10.1016/S2214-109X(13)70172-4 ;PMID: 25083415

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