National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.

<h4>Background</h4>Key Population size estimation (PSE) is instrumental for HIV/STI preventive, treatment and care services planning, implementation and delivery. The objective was to estimate the overall population of female sex workers (FSW) in all the 16 regions of Ghana using differe...

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Autores principales:	Chris Guure, Samuel Dery, Seth Afagbedzi, Waimar Tun, Sharon Stucker Weir, Silas Quaye, Augustine Ankomah, Kwasi Torpey
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0869ca89d979482682015ab96ddae3c9
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spelling	oai:doaj.org-article:0869ca89d979482682015ab96ddae3c92021-12-02T20:14:18ZNational and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.1932-620310.1371/journal.pone.0256949https://doaj.org/article/0869ca89d979482682015ab96ddae3c92021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0256949https://doaj.org/toc/1932-6203<h4>Background</h4>Key Population size estimation (PSE) is instrumental for HIV/STI preventive, treatment and care services planning, implementation and delivery. The objective was to estimate the overall population of female sex workers (FSW) in all the 16 regions of Ghana using different PSE methods.<h4>Method</h4>Mapping of venues and complete enumeration of seaters was conducted at the formative stage prior to the bio-behavioral survey (BBS). Three PSE methods were used to derive the size estimates of FSW in the 16 regions. These include: Capture-recapture (CRC), service multiplier and three-source capture recapture (3SCRC) methods. The final choice of the estimation method used to estimate the roamer population was 3SCRC. This method was chosen because of its perfect record-linkage-hierarchic combination of three names that minimizes overmatching as well as the addition of an interaction term in the model which corrects for the dependencies in CRC.<h4>Results</h4>The total population size estimate of the female sex workers in the country obtained for roamers using capture re-capture was 41,746 (95% CI: 41,488-41,932). Using the service multiplier, the total population for both the roamers and seaters was 41,153 (95% CI: 37,242-45,984). The 3-source capture re-capture yielded 55,686 roamers FSW (95% CI: 47,686-63,686). The seater population was 4,363 FSW based on census/complete enumeration. The total population size estimate of FSW (seaters and roamers) in Ghana was 60,049 when 3SCRC and census were added. This represents about 0.76% of all estimated adult females aged 15-49yrs in Ghana.<h4>Conclusion</h4>We report population size estimates (PSE) for FSW in Ghana. These estimates are the results of 3SCRC. These findings provide a valid and reliable source of information that should be referenced by government officials and policymakers to plan, implement and provide HIV/STI preventive, treatment, and care services for FSW in Ghana.Chris GuureSamuel DerySeth AfagbedziWaimar TunSharon Stucker WeirSilas QuayeAugustine AnkomahKwasi TorpeyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0256949 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chris Guure Samuel Dery Seth Afagbedzi Waimar Tun Sharon Stucker Weir Silas Quaye Augustine Ankomah Kwasi Torpey National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
description	<h4>Background</h4>Key Population size estimation (PSE) is instrumental for HIV/STI preventive, treatment and care services planning, implementation and delivery. The objective was to estimate the overall population of female sex workers (FSW) in all the 16 regions of Ghana using different PSE methods.<h4>Method</h4>Mapping of venues and complete enumeration of seaters was conducted at the formative stage prior to the bio-behavioral survey (BBS). Three PSE methods were used to derive the size estimates of FSW in the 16 regions. These include: Capture-recapture (CRC), service multiplier and three-source capture recapture (3SCRC) methods. The final choice of the estimation method used to estimate the roamer population was 3SCRC. This method was chosen because of its perfect record-linkage-hierarchic combination of three names that minimizes overmatching as well as the addition of an interaction term in the model which corrects for the dependencies in CRC.<h4>Results</h4>The total population size estimate of the female sex workers in the country obtained for roamers using capture re-capture was 41,746 (95% CI: 41,488-41,932). Using the service multiplier, the total population for both the roamers and seaters was 41,153 (95% CI: 37,242-45,984). The 3-source capture re-capture yielded 55,686 roamers FSW (95% CI: 47,686-63,686). The seater population was 4,363 FSW based on census/complete enumeration. The total population size estimate of FSW (seaters and roamers) in Ghana was 60,049 when 3SCRC and census were added. This represents about 0.76% of all estimated adult females aged 15-49yrs in Ghana.<h4>Conclusion</h4>We report population size estimates (PSE) for FSW in Ghana. These estimates are the results of 3SCRC. These findings provide a valid and reliable source of information that should be referenced by government officials and policymakers to plan, implement and provide HIV/STI preventive, treatment, and care services for FSW in Ghana.
format	article
author	Chris Guure Samuel Dery Seth Afagbedzi Waimar Tun Sharon Stucker Weir Silas Quaye Augustine Ankomah Kwasi Torpey
author_facet	Chris Guure Samuel Dery Seth Afagbedzi Waimar Tun Sharon Stucker Weir Silas Quaye Augustine Ankomah Kwasi Torpey
author_sort	Chris Guure
title	National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
title_short	National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
title_full	National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
title_fullStr	National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
title_full_unstemmed	National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.
title_sort	national and subnational size estimation of female sex workers in ghana 2020: comparing 3-source capture-recapture with other approaches.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/0869ca89d979482682015ab96ddae3c9
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National and subnational size estimation of female sex workers in Ghana 2020: Comparing 3-source capture-recapture with other approaches.

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