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Auteur A. N. MARTINEZ
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Comparing respondent-driven sampling and targeted sampling methods of recruiting injection drug users in San Francisco / A. H. KRAL ; M. MALEKINEJAD ; J. VAUDREY ; A. N. MARTINEZ ; J. LORVICK ; W. McFARLAND ; H. F. RAYMOND in Journal of Urban Health, Vol.87, n°5 (September 2010)
Titre : Comparing respondent-driven sampling and targeted sampling methods of recruiting injection drug users in San Francisco Type de document : Périodique Auteurs : A. H. KRAL ; M. MALEKINEJAD ; J. VAUDREY ; A. N. MARTINEZ ; J. LORVICK ; W. McFARLAND ; H. F. RAYMOND Année de publication : 2010 Article en page(s) : 839–850 Langues : Anglais (eng) Mots-clés : Thésaurus Géographique
COHORTE ; METHODE ; POPULATION CACHEE ; USAGER ; GEOGRAPHIE
Discipline : EPI Epidémiologie / Epidemiology Résumé : The objective of this article is to compare demographic characteristics, risk behaviors, and service utilization among injection drug users (IDUs) recruited from two separate studies in San Francisco in 2005, one which used targeted sampling (TS) and the other which used respondent-driven sampling (RDS). IDUs were recruited using TS (n = 651) and RDS (n = 534) and participated in quantitative interviews that included demographic characteristics, risk behaviors, and service utilization. Prevalence estimates and 95% confidence intervals (CIs) were calculated to assess whether there were differences in these variables by sampling method. There was overlap in 95% CIs for all demographic variables except African American race (TS: 45%, 53%; RDS: 29%, 44%). Maps showed that the proportion of IDUs distributed across zip codes were similar for the TS and RDS sample, with the exception of a single zip code that was more represented in the TS sample. This zip code includes an isolated, predominantly African American neighborhood where only the TS study had a field site. Risk behavior estimates were similar for both TS and RDS samples, although self-reported hepatitis C infection was lower in the RDS sample. In terms of service utilization, more IDUs in the RDS sample reported no recent use of drug treatment and syringe exchange program services. Our study suggests that perhaps a hybrid sampling plan is best suited for recruiting IDUs in San Francisco, whereby the more intensive ethnographic and secondary analysis components of TS would aid in the planning of seed placement and field locations for RDS. [Author's abstract] Domaine : Drogues illicites / Illicit drugs Refs biblio. : 39 Affiliation : Urban Health Program, RTI International, 114 Sansome Street, Suite 500, San Francisco, CA, 94104, United States / Etats-Unis Cote : A04058 Lien : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2937131/ Permalink :
in Journal of Urban Health > Vol.87, n°5 (September 2010) . - 839–850[article]A comparison of syringe disposal practices among injection drug users in a city with versus a city without needle and syringe programs / H. E. TOOKES ; A. H. KRAL ; L. D. WENGER ; G. A. CARDENAS ; A. N. MARTINEZ ; R. L. SHERMAN ; M. PEREYRA ; D. W. FORREST ; M. LALOTA ; L. R. METSCH in Drug and Alcohol Dependence, Vol.123, n°1-3 (June 2012)
Titre : A comparison of syringe disposal practices among injection drug users in a city with versus a city without needle and syringe programs Type de document : Périodique Auteurs : H. E. TOOKES ; A. H. KRAL ; L. D. WENGER ; G. A. CARDENAS ; A. N. MARTINEZ ; R. L. SHERMAN ; M. PEREYRA ; D. W. FORREST ; M. LALOTA ; L. R. METSCH Année de publication : 2012 Article en page(s) : 255-259 Langues : Anglais (eng) Mots-clés : Thésaurus Géographique
PROGRAMME ; ECHANGE DE SERINGUES ; VIH ; HEPATITE ; COMPARAISON ; USAGER
Discipline : PRE Prévention / Prevention Résumé : Background: The United States (U.S.) approved use of federal funds for needle and syringe programs (NSPs) in December 2009. This study compares syringe disposal practices in a U.S. city with NSPs to a U.S. city without NSPs by examining the prevalence of improperly discarded syringes in public places and the self-reported syringe disposal practices of injection drug users (IDUs) in the two cities.
Methods: We conducted visual inspection walkthroughs in a random sample of the top-quartile of drug-affected neighborhoods in San Francisco, California (a city with NSPs) and Miami, Florida (a city without NSPs). We also conducted quantitative interviews with adult IDUs in San Francisco (N = 602) and Miami (N = 448).
Results: In the visual inspections, we found 44 syringes/1000 census blocks in San Francisco, and 371 syringes/1000 census blocks in Miami. Survey results showed that in San Francisco 13% of syringes IDUs reported using in the 30 days preceding the study interviews were disposed of improperly versus 95% of syringes by IDUs in Miami. In multivariable logistic regression analysis, IDUs in Miami had over 34 times the adjusted odds of public syringe disposal relative to IDUs in San Francisco (adjusted odds ratio = 34.2, 95% CI = 21.92, 53.47).
Conclusions: We found eight-fold more improperly disposed syringes on walkthroughs in the city without NSPs compared to the city with NSPs, which was corroborated by survey data. NSPs may help IDUs dispose of their syringes safely in cities with large numbers of IDUs.
Domaine : Drogues illicites / Illicit drugs Affiliation : Department of Epidemiology and Public Health, Miller School of Medicine, University of Miami, Miami, Florida, USA Lien : http://findings.org.uk/count/downloads/download.php?file=Tookes_HE_1.txt Permalink :
in Drug and Alcohol Dependence > Vol.123, n°1-3 (June 2012) . - 255-259[article]Interdisciplinary mixed methods research with structurally vulnerable populations: Case studies of injection drug users in San Francisco / A. M. LOPEZ ; P. BOURGOIS ; L. D. WENGER ; J. LORVICK ; A. N. MARTINEZ ; A. H. KRAL in International Journal of Drug Policy, Vol.24, n°2 (March 2013)
Titre : Interdisciplinary mixed methods research with structurally vulnerable populations: Case studies of injection drug users in San Francisco Type de document : Périodique Auteurs : A. M. LOPEZ ; P. BOURGOIS ; L. D. WENGER ; J. LORVICK ; A. N. MARTINEZ ; A. H. KRAL Année de publication : 2013 Article en page(s) : 101-109 Langues : Anglais (eng) Mots-clés : Thésaurus Géographique
POPULATION A RISQUE ; FACTEUR DE VULNERABILITE ; METHODE ; INTERDISCIPLINARITE ; USAGER ; ETUDE QUALITATIVE ; ETHNOGRAPHIE ; SANS ABRI ; POPULATION CACHEE ; ETUDE DE CAS
Discipline : SHS Sciences humaines et sociales / Human and social sciences Résumé : Research with injection drug users (IDUs) benefits from interdisciplinary theoretical and methodological innovation because drug use is illegal, socially sanctioned and often hidden. Despite the increasing visibility of interdisciplinary, mixed methods research projects with IDUs, qualitative components are often subordinated to quantitative approaches and page restrictions in top addiction journals limit detailed reports of complex data collection and analysis logistics, thus minimizing the fuller scientific potential of genuine mixed methods. We present the methodological logistics and conceptual approaches of four mixed-methods research projects that our interdisciplinary team conducted in San Francisco with IDUs over the past two decades. These projects include combinations of participant-observation ethnography, in-depth qualitative interviewing, epidemiological surveys, photo-documentation, and geographic mapping. We adapted Greene et al.’s framework for combining methods in a single research project through: data triangulation, methodological complementarity, methodological initiation, and methodological expansion. We argue that: (1) flexible and self-reflexive methodological procedures allowed us to seize strategic opportunities to document unexpected and sometimes contradictory findings as they emerged to generate new research questions, (2) iteratively mixing methods increased the scope, reliability, and generalizability of our data, and (3) interdisciplinary collaboration contributed to a scientific "value added" that allowed for more robust theoretical and practical findings about drug use and risk-taking. Domaine : Drogues illicites / Illicit drugs Affiliation : Urban Health Program, RTI International, San Francisco Regional Office, San Francisco, CA, USA Cote : Abonnement Permalink :
in International Journal of Drug Policy > Vol.24, n°2 (March 2013) . - 101-109[article]