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Probabilistic projections of HIV prevalence using Bayesian melding

Domain:

healthcare

Record type:

paper
Creator:
Alkema, LeontineRafCla
Publisher:
arXiv
Host:avatar
The Joint United Nations Programme on HIV/AIDS (UNAIDS) has developed the Estimation and Projection Package (EPP) for making national estimates and short-term projections of HIV prevalence based on observed prevalence trends at antenatal clinics. Assessing the uncertainty about its estimates and projections is important for informed policy decision making, and we propose the use of Bayesian melding for this purpose. Prevalence data and other information about the EPP model's input parameters are used to derive a probabilistic HIV prevalence projection, namely a probability distribution over a set of future prevalence trajectories. We relate antenatal clinic prevalence to population prevalence and account for variability between clinics using a random effects model. Predictive intervals for clinic prevalence are derived for checking the model. We discuss predictions given by the EPP model and the results of the Bayesian melding procedure for Uganda, where prevalence peaked at around 28% in 1990; the 95% prediction interval for 2010 ranges from 2% to 7%. Published at dx.doi.org in the Annals of Applied Statistics (imstat.org) by the Institute of Mathematical Statistics (imstat.org)

Visit

doi.orgarxiv.org

Tags

Applications (stat.AP)FOS: Computer and information sciencesFOS: Computer and information sciences

Licenses

Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004http://arxiv.org/licenses/assumed-1991-2003/

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