Respondent-driven sampling (RDS) is a relatively new form of sampling hidden populations. RDS has the ability to produce valid population estimates, provided that certain assumptions are met. This study examined whether an RDS survey of people who inject drugs (PWID) conducted in South East Sydney was able to meet the assumptions and requirements necessary to produce valid population estimates. From November 2009 to March 2010, 261 participants were recruited in 16 waves. While the method's requirements and assumptions were largely met, an apparent lack of random recruitment and the low proportion of coupons returned were sources of concern. This study shows that RDS can be used successfully in Australia as a means of recruiting PWID. However, more work is needed to confirm the soundness of the assumptions on which the calculation of valid population estimates are based.
Abdul-QuaderA. S.HeckathornD. D.McKnightC.BramsonH.NemethC.SabinK. (2006). Effectiveness of respondent-driven sampling for recruiting drug users in New York City: Findings from a pilot study. Journal of Urban Health, 83(3), 459–476.
2.
Abdul-QuaderA. S.HeckathornD. D.SabinK., & SaidelT. (2006). Implementation and analysis of respondent driven smpling: Lessons learned from the field. Journal of Urban Health, 83(Suppl. 1), 1–5.
3.
DegenneA., & ForseM. (1999). Introducing social networks. London, SAGE Publications.
FrostS. D.BrouwerK. C.CruzFirestone M. A.RamosR.RamosM. E.LozadaR. M. (2006). Respondent-driven sampling of injection drug users in two U.S.-Mexico border cities: Recruitment dynamics and impact on estimates of HIV and syphilis prevalence. Journal of Urban Health, 83(Suppl. 1), 83–97.
6.
GileK. J., & HandcockM. S. (2010). Respondent-driven sampling: An assessment of current methodology. Sociological Methodology, 40(1), 285–327.
7.
HeckathornD. D. (1997). Respondent-driven sampling: A new approach to the study of hidden populations. Social Problems, 44(2), 174–199.
8.
HeckathornD. D. (2002). Respondent-driven sampling II: Deriving valid population estimates from chain-referral samples of hidden populations. Social Problems, 49(1), 11–34.
9.
HeckathornD. D. (2007). Extensions of respondent-driven sampling: Analyzing continuous variables and controlling for differential recruitment. Sociological Methodology, 37 (1), 151–207.
10.
HeckathornD. D.SemaanS.BroadheadR. S., & HughesJ. J. (2002). Extensions of respondent-driven sampling: A new approach to the study of injection drug users aged 18–25. AIDS and Behavior, 6(1), 55–67.
11.
IguchiM. Y.OberA. J.BerryS. H.FainT.HeckathornD. D.GorbachP. M. (2009). Simultaneous recruitment of drug users and men who have sex with men in the United States and Russia using respondent-driven sampling: Sampling methods and implications. Journal of Urban Health, 86(Suppl. 1), S5–S31.
12.
JohnstonL. G. (2008) Behavioural surveillance: Introduction to respondent driven sampling. Atlanta, GA: Centers for Disease Control and Prevention.
13.
JohnstonL. G.KhanamR.RezaM. N.KhanS. I.BanuS.AlamM. S. (2008). The effectiveness of respondent driven sampling for recruiting males who have sex with males in Dhaka, Bangladesh. AIDS and Behavior, 12(2), 294–304.
14.
JohnstonL. G.MalekinejadM.KendallC.IuppaI. N., & RutherfordG. W. (2008). Implementation challenges to using respondent-driven sampling methodology for HIV biological and behavioral surveillance: Field experiences in international settings. AIDS and Behavior, 12(Suppl. 1), 131–141.
15.
KimberJ.HickmanM.DegenhardtL.CoulsonT., & Van BeekI. (2008). Estimating the size and dynamics of an injecting drug user population and implications for health service coverage: Comparison of indirect prevalence estimation methods. Addiction, 103(10), 1604–1613.
16.
LanskyA.Abdul-QuaderA. S.CribbinM.HallT.FinlaysonT. J.GarfeinR. S. (2007). Developing an HIV behavioral surveillance system for injecting drug users: The national HIV behavioral surveillance system. Public Health Reports, 122(Suppl. 1), 48–55.
17.
MagnaniR.SabinK.SaidelT., & HeckathornD. D. (2005).Review of sampling hard-to-reach and hidden populations for HIV surveillance. AIDS, 19(2Suppl.), 67–72.
18.
MalekinejadM.JohnstonL. G.KendallC.KerrL. R. F. S.RofkinM. R., & RutherfordG. W. (2008). Using respondent-driven sampling methodology for HIV biological and behavioral surveillance in international settings: A systematic review. AIDS and Behavior, 12(Suppl. 1). 105–130.
PoonA. F. Y.BrouwerK. C.StrathdeeS. A.CruzFirestone M.LozadaR. M.PondKosakovsky S. L. (2009). Parsing social network survey data from hidden populations using stochastic context-free grammars. PLoS ONE4(9). Retrieved May 24, 2010, from http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.000677
21.
Ramirez-VallesJ.HeckathornD. D.VazquezR.DiazR. M., & CampbellR. T. (2005). From networks to populations: The development and application of respondent-driven sampling among IDUs and Latino gay men. AIDS and Behavior, 9(4), 387–402.
22.
SalganikM. J. (2006). Variance estimation, design effects, and sample size calculations for respondent-driven sampling. Journal of Urban Health, 83(Suppl. 1), 98–112.
23.
SalganikM. J., & HeckathornD. D. (2004). Sampling and estimation in hidden populations using respondent-driven sampling. Sociological Methodology, 34, 193–239.
24.
WangJ.CarlsonR. G.FalckR. S.SiegalH. A.RahmanA., & LiL. (2005). Respondent-driven sampling to recruit MDMA users: A methodological assessment. Drug and Alcohol Dependence, 78(2), 147–157.
25.
WangJ.FalckR. S.LiL.RahmanA., & CarlsonR. G. (2007). Respondent-driven sampling in the recruitment of illicit stimulant drug users in a rural setting: Findings and technical issues. Addictive Behaviors, 32(5), 924–937.
26.
WejnertC. (2009). An empirical test of respondent-driven sampling: Point estimates, variance, degree measures, and out-of-equilibrium data. Sociological Methodology, 39(1), 73–116.
27.
WejnertC., & HeckathornD. D. (2008). Web-based network sampling: Efficiency and efficacy of respondent-driven sampling for online research. Sociological Methods and Research, 37(1), 105–134.
