Imperial College London
Alternate

Jeff Imai-Eaton

Faculty of Medicine, School of Public Health

Senior Research Fellow
 
 
 
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Contact

 

jeffrey.eaton

 
 
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Location

 

UG7Norfolk PlaceSt Mary's Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sheng:2020:10.1007/s12561-020-09265-4,
author = {Sheng, B and Eaton, JW and Mahy, M and Bao, L},
doi = {10.1007/s12561-020-09265-4},
journal = {Statistics in Biosciences},
pages = {279--294},
title = {Comparison of HIV prevalence among antenatal clinic attendees estimated from routine testing and unlinked anonymous testing},
url = {http://dx.doi.org/10.1007/s12561-020-09265-4},
volume = {12},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In 2015, WHO and UNAIDS released new guidance recommending that countries transition from conducting antenatal clinic (ANC) unlinked anonymous testing (ANC-UAT) for tracking HIV prevalence trends among pregnant women to using ANC routine testing (ANC-RT) data, which are more consistent and economic to collect. This transition could pose challenges for distinguishing whether changes in observed prevalence are due to a change in underlying population prevalence or due to a change in the testing approach. We compared the HIV prevalence measured from ANC-UAT and ANC-RT in 15 countries that had both data sources in overlapping years. We used linear mixed-effects model (LMM) to estimate the RT-to-UAT calibration parameter as well as other unobserved quantities. We summarized the results at different levels of aggregation (e.g., country, urban, rural, and province). Based on our analysis, the HIV prevalence measured by ANC-UAT and ANC-RT data are consistent in most countries. Therefore, if large discrepancy is observed between ANC-UAT and ANC-RT at the same location, we recommend that people should be cautious and investigate the reason. For countries that lack information to estimate the calibration parameter, we propose an informative prior distribution of mean 0 and standard deviation 0.2 for the RT-to-UAT calibration parameter.
AU  - Sheng,B
AU  - Eaton,JW
AU  - Mahy,M
AU  - Bao,L
DO  - 10.1007/s12561-020-09265-4
EP  - 294
PY  - 2020///
SN  - 1867-1772
SP  - 279
TI  - Comparison of HIV prevalence among antenatal clinic attendees estimated from routine testing and unlinked anonymous testing
T2  - Statistics in Biosciences
UR  - http://dx.doi.org/10.1007/s12561-020-09265-4
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000517014400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007%2Fs12561-020-09265-4
UR  - http://hdl.handle.net/10044/1/77644
VL  - 12
ER  -
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