Sampling Males Who Inject Drugs in Haiphong, Vietnam: Comparison of Time-Location and Respondent-Driven Sampling Methods.
Accurate measurements of HIV prevalence and associated risk factors among hidden and high-risk groups are vital for program planning and implementation. However, only two sampling methods are purported to provide representative estimates for populations without sampling frames: time-location samplin...
| Publicado en: | Journal of Urban Health Vol. 92; no. 4; pp. 744 - 758 |
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| Autores principales: | , , , , , , |
| Formato: | Artículo |
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Springer Nature
Aug2015
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=108720154&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 108720154 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10993460 GMF jtl: Journal of Urban Health issn: 10993460 maglogo: N pubinfo: dt: Aug2015 vid: 92 iid: 4 pid: 237 pub: Springer Nature artinfo: ui: 108720154 10.1007/s11524-015-9966-z ppf: 744 ppct: 14 formats: fmt: @attributes: type: P size: 324KB tig: atl: Sampling Males Who Inject Drugs in Haiphong, Vietnam: Comparison of Time-Location and Respondent-Driven Sampling Methods. aug: au: Tran, Hoang Le, Linh-Vi Johnston, Lisa Nadol, Patrick Do, Anh Tran, Ha Nguyen, Tuan affil: Partners in Health Research, Hanoi Vietnam U.S. Centers for Disease Control and Prevention, Hanoi Vietnam FHI 360, Hanoi Vietnam National Institute of Hygiene and Epidemiology, Hanoi Vietnam su: Haiphong (Vietnam) HIV infection risk factors Intravenous drug abusers Disease prevalence Health programs Statistical sampling sug: subj: Haiphong (Vietnam) Marketing Research and Public Opinion Polling Other provincial and territorial public administration HIV infection risk factors Intravenous drug abusers Disease prevalence Health programs Statistical sampling keyword: Bio-behavioral surveillance HIV/AIDS People who inject drugs Respondent-driven sampling Time-location sampling Bio-behavioral surveillance HIV/AIDS People who inject drugs Respondent-driven sampling Time-location sampling ab: Accurate measurements of HIV prevalence and associated risk factors among hidden and high-risk groups are vital for program planning and implementation. However, only two sampling methods are purported to provide representative estimates for populations without sampling frames: time-location sampling (TLS) and respondent-driven sampling (RDS). Each method is subject to potential biases and questionable reliability. In this paper, we evaluate surveys designed to estimate HIV prevalence and associated risk factors among people who inject drugs (PWID) sampled through TLS versus RDS. In 2012, males aged ≥16 years who reported injecting drugs in the previous month and living in Haiphong, Vietnam, were sampled using TLS or RDS. Data from each survey were analyzed to compare HIV prevalence, related risk factors, socio-demographic characteristics, refusal estimates, and time and expenditures for field implementation. TLS ( n = 432) and RDS ( n = 415) produced similarly high estimates for HIV prevalence. Significantly lower proportions of PWID sampled through RDS received methadone treatment or met an outreach worker. Refusal estimates were lower for TLS than for RDS. Total expenditures per sample collected and number of person-days of staff effort were higher for TLS than for RDS. Both survey methods were successful in recruiting a diverse sample of PWID in Haiphong. In Vietnam, surveys of PWID are conducted throughout the country; although the refusal estimate was calculated to be much higher for RDS than TLS, RDS in Haiphong appeared to sample PWID with less exposure to services and required fewer financial and staff resources compared with TLS. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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