Imperial College London

Jeff Eaton

Faculty of MedicineSchool of Public Health

Senior Lecturer in HIV Epidemiology







Norfolk PlaceSt Mary's Campus






BibTex format

author = {Brown, T and Bao, L and Eaton, JW and Hogan, DR and Mahy, M and Marsh, K and Mathers, BM and Puckett, R},
doi = {10.1097/QAD.0000000000000454},
journal = {AIDS},
pages = {S415--S425},
title = {Improvements in prevalence trend fitting and incidence estimation in EPP 2013},
url = {},
volume = {28},
year = {2014}

RIS format (EndNote, RefMan)

AB - Objective: Describe modifications to the latest version of the Joint United Nations Programme on AIDS (UNAIDS) Estimation and Projection Package component of Spectrum (EPP 2013) to improve prevalence fitting and incidence trend estimation in national epidemics and global estimates of HIV burden.Methods: Key changes made under the guidance of the UNAIDS Reference Group on Estimates, Modelling and Projections include: availability of a range of incidence calculation models and guidance for selecting a model; a shift to reporting the Bayesian median instead of the maximum likelihood estimate; procedures for comparison and validation against reported HIV and AIDS data; incorporation of national surveys as an integral part of the fitting and calibration procedure, allowing survey trends to inform the fit; improved antenatal clinic calibration procedures in countries without surveys; adjustment of national antiretroviral therapy reports used in the fitting to include only those aged 15–49 years; better estimates of mortality among people who inject drugs; and enhancements to speed fitting.Results: The revised models in EPP 2013 allow closer fits to observed prevalence trend data and reflect improving understanding of HIV epidemics and associated data.
AU - Brown,T
AU - Bao,L
AU - Eaton,JW
AU - Hogan,DR
AU - Mahy,M
AU - Marsh,K
AU - Mathers,BM
AU - Puckett,R
DO - 10.1097/QAD.0000000000000454
EP - 425
PY - 2014///
SN - 0269-9370
SP - 415
TI - Improvements in prevalence trend fitting and incidence estimation in EPP 2013
UR -
UR -
VL - 28
ER -