Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise

Background: HIV/AIDS program managers in Ho Chi Minh City (HCMC), Vietnam have always relied on the police reports and the UNAIDS Estimation and Projection Package for population size estimation of People Who Inject Drugs (PWID). Methods: We used Respondent-driven Sampling (RDS) to implement a tw...

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Main Authors: Nghia Van Khuu, Phuc Duy Nguyen, Giang Tong Le, Hoa Thi Yen Luong, Van Thi Thu Tieu, Hau Phuc Tran, Thuong Vu Nguyen, Meade Morgan, Abu S. Abdul-Quader
Format: Article
Language:English
Published: Springer 2020-06-01
Series:Journal of Epidemiology and Global Health
Subjects:
Online Access:https://www.atlantis-press.com/article/125941352/view
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author Nghia Van Khuu
Phuc Duy Nguyen
Giang Tong Le
Hoa Thi Yen Luong
Van Thi Thu Tieu
Hau Phuc Tran
Thuong Vu Nguyen
Meade Morgan
Abu S. Abdul-Quader
author_facet Nghia Van Khuu
Phuc Duy Nguyen
Giang Tong Le
Hoa Thi Yen Luong
Van Thi Thu Tieu
Hau Phuc Tran
Thuong Vu Nguyen
Meade Morgan
Abu S. Abdul-Quader
author_sort Nghia Van Khuu
collection DOAJ
description Background: HIV/AIDS program managers in Ho Chi Minh City (HCMC), Vietnam have always relied on the police reports and the UNAIDS Estimation and Projection Package for population size estimation of People Who Inject Drugs (PWID). Methods: We used Respondent-driven Sampling (RDS) to implement a two-source capture–recapture study to estimate the population size of PWID in HCMC in 2017. The study was implemented in seven out of 24 districts and included men and women ages 18 years and older who reported injecting illicit drugs in the last 90 days, and who had lived in the city for the past six months. Estimates of the PWID population size for each of the seven districts were calculated accounting for the RDS sampling design. These were then adjusted to account for the district sampling probabilities to give an estimate for HCMC. Chapman two-source capture–recapture estimates of population size, based on simple random sampling assumptions, were also calculated for comparison. Results: The estimates resulted in a population size for HCMC of 19,155 [95% Confidence Interval (CI): 17,006–25,039] using the RDS approach and 17,947 (95% CI: 15,968–19,928), using the Chapman approach. Conclusion: The two-survey capture–recapture exercise provided estimates of PWID in HCMC – based on Chapman estimator and RDS approach – are similar. For planning HIV prevention and care service needs among PWID in HCMC, both estimates may need to be taken into consideration together with size estimates from other sources.
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spelling doaj.art-9b1c130ac28e44f8abd00a9368b96c472022-12-22T01:06:16ZengSpringerJournal of Epidemiology and Global Health2210-60142020-06-0111110.2991/jegh.k.200615.001Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation ExerciseNghia Van KhuuPhuc Duy NguyenGiang Tong LeHoa Thi Yen LuongVan Thi Thu TieuHau Phuc TranThuong Vu NguyenMeade MorganAbu S. Abdul-QuaderBackground: HIV/AIDS program managers in Ho Chi Minh City (HCMC), Vietnam have always relied on the police reports and the UNAIDS Estimation and Projection Package for population size estimation of People Who Inject Drugs (PWID). Methods: We used Respondent-driven Sampling (RDS) to implement a two-source capture–recapture study to estimate the population size of PWID in HCMC in 2017. The study was implemented in seven out of 24 districts and included men and women ages 18 years and older who reported injecting illicit drugs in the last 90 days, and who had lived in the city for the past six months. Estimates of the PWID population size for each of the seven districts were calculated accounting for the RDS sampling design. These were then adjusted to account for the district sampling probabilities to give an estimate for HCMC. Chapman two-source capture–recapture estimates of population size, based on simple random sampling assumptions, were also calculated for comparison. Results: The estimates resulted in a population size for HCMC of 19,155 [95% Confidence Interval (CI): 17,006–25,039] using the RDS approach and 17,947 (95% CI: 15,968–19,928), using the Chapman approach. Conclusion: The two-survey capture–recapture exercise provided estimates of PWID in HCMC – based on Chapman estimator and RDS approach – are similar. For planning HIV prevention and care service needs among PWID in HCMC, both estimates may need to be taken into consideration together with size estimates from other sources.https://www.atlantis-press.com/article/125941352/viewPopulation size estimationpeople who inject drugsrespondent-driven samplingHo Chi Minh CityVietnam
spellingShingle Nghia Van Khuu
Phuc Duy Nguyen
Giang Tong Le
Hoa Thi Yen Luong
Van Thi Thu Tieu
Hau Phuc Tran
Thuong Vu Nguyen
Meade Morgan
Abu S. Abdul-Quader
Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
Journal of Epidemiology and Global Health
Population size estimation
people who inject drugs
respondent-driven sampling
Ho Chi Minh City
Vietnam
title Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
title_full Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
title_fullStr Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
title_full_unstemmed Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
title_short Estimated Number of People who Inject Drugs in Ho Chi Minh City, Vietnam: Findings from a Two-survey Capture–Recapture Population Size Estimation Exercise
title_sort estimated number of people who inject drugs in ho chi minh city vietnam findings from a two survey capture recapture population size estimation exercise
topic Population size estimation
people who inject drugs
respondent-driven sampling
Ho Chi Minh City
Vietnam
url https://www.atlantis-press.com/article/125941352/view
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