scholarly journals Estimating the Population Size of Female Sex Workers in Namibia Using a Respondent-Driven Sampling Adjustment to the Reverse Tracking Method: A Novel Approach

10.2196/11737 ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. e11737 ◽  
Author(s):  
Paul Douglas Wesson ◽  
Rajatashuvra Adhikary ◽  
Anna Jonas ◽  
Krysta Gerndt ◽  
Ali Mirzazadeh ◽  
...  
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Respondent Driven Sampling ◽  
Tracking Method ◽  
Female Sex ◽  
Novel Approach

scholarly journals Estimating the Population Size of Female Sex Workers in Namibia Using a Respondent-Driven Sampling Adjustment to the Reverse Tracking Method: A Novel Approach (Preprint)

2018 ◽  
Author(s):  
Paul Douglas Wesson ◽  
Rajatashuvra Adhikary ◽  
Anna Jonas ◽  
Krysta Gerndt ◽  
Ali Mirzazadeh ◽  
...  
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Respondent Driven Sampling ◽  
Double Counting ◽  
Size Estimation ◽  
Tracking Method ◽  
Female Sex ◽  
Population Size Estimates ◽  
Size Estimates

BACKGROUND Key populations, including female sex workers (FSWs), are at a disproportionately high risk for HIV infection. Estimates of the size of these populations serve as denominator data to inform HIV prevention and treatment programming and are necessary for the equitable allocation of limited public health resources. OBJECTIVE This study aimed to present the respondent-driven sampling (RDS) adjusted reverse tracking method (RTM; RadR), a novel population size estimation approach that combines venue mapping data with RDS data to estimate the population size, adjusted for double counting and nonattendance biases. METHODS We used data from a 2014 RDS survey of FSWs in Windhoek and Katima Mulilo, Namibia, to demonstrate the RadR method. Information from venue mapping and enumeration from the survey formative assessment phase were combined with survey-based venue-inquiry questions to estimate population size, adjusting for double counting, and FSWs who do not attend venues. RadR estimates were compared with the official population size estimates, published by the Namibian Ministry of Health and Social Services (MoHSS), and with the unadjusted RTM. RESULTS Using the RadR method, we estimated 1552 (95% simulation interval, SI, 1101-2387) FSWs in Windhoek and 453 (95% SI: 336-656) FSWs in Katima Mulilo. These estimates were slightly more conservative than the MoHSS estimates—Windhoek: 3000 (1800-3400); Katima Mulilo: 800 (380-2000)—though not statistically different. We also found 75 additional venues in Windhoek and 59 additional venues in Katima Mulilo identified by RDS participants’ responses that were not detected during the initial mapping exercise. CONCLUSIONS The RadR estimates were comparable with official estimates from the MoHSS. The RadR method is easily integrated into RDS studies, producing plausible population size estimates, and can also validate and update key population maps for outreach and venue-based sampling.

scholarly journals Unexpectedly high HIV prevalence among female sex workers in Bangkok, Thailand in a respondent-driven sampling survey

2013 ◽  
Vol 24 (1) ◽  
pp. 34-38 ◽  
Author(s):  
C Manopaiboon ◽  
D Prybylski ◽  
W Subhachaturas ◽  
S Tanpradech ◽  
O Suksripanich ◽  
...  
Keyword(s):  
Sex Workers ◽  
Female Sex Workers ◽  
Hiv Prevalence ◽  
Respondent Driven Sampling ◽  
Female Sex ◽  
Sampling Survey

Characteristics and Population Size Estimation of Female Sex Workers in Bhutan

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Lekey Khandu ◽  
Tashi Tobgay ◽  
Kinley Kinley ◽  
Ngawang Choida ◽  
Tshering Tashi ◽  
...  
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Population Size Estimation ◽  
Size Estimation ◽  
Female Sex

scholarly journals P3.193 The Prevalence of HIV and STIs Among Female Sex Workers in Shiraz, South of Iran: by Respondent Driven Sampling

2013 ◽  
Vol 89 (Suppl 1) ◽  
pp. A208.2-A208
Author(s):  
P Afsar Kazerooni ◽  
N Motazedian ◽  
M Motamedifar ◽  
M Sayadi ◽  
M Sabet ◽  
...  
Keyword(s):  
Sex Workers ◽  
Female Sex Workers ◽  
Respondent Driven Sampling ◽  
Female Sex

scholarly journals Viral hepatitis in female sex workers using the Respondent-Driven Sampling

2017 ◽  
Vol 51 (0) ◽  
Author(s):  
Marcos André de Matos ◽  
Divânia Dias da Silva França ◽  
Megmar Aparecida dos Santos Carneiro ◽  
Regina Maria Bringel Martins ◽  
Lígia Regina Franco Sansigolo Kerr ◽  
...  
Keyword(s):  
Viral Hepatitis ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Respondent Driven Sampling ◽  
Female Sex

scholarly journals Population size estimation of female sex workers in Iran: Synthesis of methods and results

PLoS ONE ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. e0182755 ◽  
Author(s):  
Hamid Sharifi ◽  
Mohammad Karamouzian ◽  
Mohammad Reza Baneshi ◽  
Mostafa Shokoohi ◽  
AliAkbar Haghdoost ◽  
...  
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Population Size Estimation ◽  
Size Estimation ◽  
Female Sex

scholarly journals Population Size Estimation of Venue-Based Female Sex Workers in Ho Chi Minh City, Vietnam: Capture-Recapture Exercise

10.2196/10906 ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. e10906 ◽  
Author(s):  
Giang Le ◽  
Nghia Khuu ◽  
Van Thi Thu Tieu ◽  
Phuc Duy Nguyen ◽  
Hoa Thi Yen Luong ◽  
...  
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Population Size Estimation ◽  
Ho Chi Minh City ◽  
Size Estimation ◽  
Female Sex ◽  
Capture Recapture

shinyrecap: A Shiny Application for Population Size Estimation from Capture-Recapture Data (Preprint)

2021 ◽  
Author(s):  
Anne F. McIntyre ◽  
Ian E. Fellows ◽  
Steve Gutreuter ◽  
Wolfgang Hladik
Keyword(s):  
Population Size ◽  
Sex Workers ◽  
Female Sex Workers ◽  
Population Size Estimation ◽  
Sub Saharan Africa ◽  
Size Estimation ◽  
Female Sex ◽  
Populations At Risk ◽  
Population Size Estimates ◽  
Capture Recapture

BACKGROUND Capture-recapture is often used to estimate the size of populations at risk for HIV, including female sex workers, men who have sex with men, and people who inject drugs. These population size estimates are critical in determining resource allocation for HIV services geared toward these communities. OBJECTIVE Compared to the commonly used two-source capture-recapture, capture-recapture relying on three (or more) samples can provide more robust PSE but involve far more complex statistical analysis. shinyrecap is designed to provide a user-friendly interface for the field epidemiologist. METHODS shinyrecap is built on the Shiny web application framework for R. This allows it to seamlessly integrate with the sophisticated CRC statistical packages. Additionally, the application may be accessed online or run locally on the user’s machine. RESULTS The application enables users to engage in sample size calculation based on a simulation framework. It assists in the proper formatting of collected data by providing a tool to convert commonly used formats to that used by analysis software. A wide variety of methodologies are supported by the analysis tool, including log-linear, Bayesian model averaging, and Bayesian latent class models. For each methodology, diagnostics and model checking interfaces are provided. CONCLUSIONS Through a use case, we demonstrate the broad utility of this powerful tool with three-source capture-recapture data to produce population size estimation for female sex workers in a subnational unit of a country in sub-Saharan Africa.

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