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Farooq A, Valerio H, Wheeler A, Martinello M, Henderson C, Silk D, Degenhardt L, Read P, Dore GJ, Grebely J, Cunningham EB. Needle and syringe sharing among people who have recently injected drugs in Australia: The ETHOS Engage Study. Drug Alcohol Rev 2024. [PMID: 38630939 DOI: 10.1111/dar.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/01/2024] [Accepted: 02/10/2024] [Indexed: 04/19/2024]
Abstract
INTRODUCTION Understanding needle/syringe sharing is crucial for reducing hepatitis C virus (HCV) infection and reinfection. This study aimed to assess the prevalence and factors associated with needle/syringe sharing among people who inject drugs in Australia, including those previously receiving HCV treatment. METHODS The ETHOS Engage study was an observational cohort study which collected self-reported survey data on demographic and drug use information from people who inject drugs attending drug treatment clinics and needle and syringe programs over two waves between May 2018 and June 2021. Logistic regression was used to identify factors associated with needle/syringe sharing. RESULTS Overall, 1555/2395 people enrolled in ETHOS Engage (65%) injected drugs in the past month. Among these, 432 (28%) reported needle/syringe sharing in the past month and 276 (18%) reported receptive sharing. Factors associated with receptive sharing included younger age (adjusted odds ratio [aOR] 1.72; 95% confidence interval [CI] 1.28-2.30), recent incarceration (aOR 2.04; 95% CI 1.40-2.94), more frequent injecting (≥daily vs. less than weekly; aOR 2.59; 95% CI 1.75-3.84) and unstable housing (aOR 1.78; 95% CI 1.26-2.52). Among 560 participants with prior HCV treatment, 87 (16%) reported receptive sharing with younger age (aOR 2.42; 95% CI 1.45-4.05) and daily or greater injection frequency (aOR 2.51; 95% CI 1.31-4.83) associated with receptive sharing. DISCUSSION AND CONCLUSIONS Needle/syringe sharing was common among this population accessing harm reduction services. This study identifies high-risk populations with needle/syringe sharing. Research is needed to optimise HCV treatment to ensure people with ongoing risk behaviours receive adequate harm reduction following treatment to prevent reinfection.
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Affiliation(s)
| | | | | | | | | | - David Silk
- The Kirby Institute, UNSW, Sydney, Australia
| | | | - Phillip Read
- The Kirby Institute, UNSW, Sydney, Australia
- Kirketon Road Centre, Sydney, Australia
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Lalanne L, Roux P, Donadille C, Briand Madrid L, Célerier I, Chauvin C, Hamelin N, Kervran C, Maradan G, Auriacombe M, Jauffret-Roustide M. Drug consumption rooms are effective to reduce at-risk practices associated with HIV/HCV infections among people who inject drugs: Results from the COSINUS cohort study. Addiction 2024; 119:180-199. [PMID: 37743675 DOI: 10.1111/add.16320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 07/05/2023] [Indexed: 09/26/2023]
Abstract
AIMS The primary aim of this study was to evaluate the impact of drug consumption rooms (DCRs) in France on injection equipment-sharing, while the secondary aims focused upon their impact on access to hepatitis C virus (HCV) testing and opioid agonist treatment (OAT). DESIGN The COhort to identify Structural and INdividual factors associated with drug USe (COSINUS cohort) was a 12-month longitudinal study of 665 people who inject drugs (PWID), conducted in Bordeaux, Marseille, Paris and Strasbourg. We used data from face-to-face interviews at enrolment and at 6-month and 12-month visits. SETTING AND PARTICIPANTS The participants were recruited in harm reduction programmes in Bordeaux and Marseille and in DCRs in Strasbourg and Paris. Participants were aged more than 18 years, French-speaking and had injected substances the month before enrolment. MEASUREMENTS We measured the impact of DCR exposure on injection equipment sharing, HCV testing and the use of medications for opioid use disorder, after adjustment for significant correlates. We used a two-step Heckman mixed-effects probit model, which allowed us to take into account the correlation of repeated measures and to control for potential bias due to non-randomization between the two groups (DCR-exposed versus DCR-unexposed participants). FINDINGS The difference of declared injection equipment sharing between PWID exposed to DCRs versus non-exposed was 10% (1% for those exposed versus 11% for those non-exposed, marginal effect = -0.10; 95% confidence interval = -0.18, -0.03); there was no impact of DCRs on HCV testing and OAT. CONCLUSIONS In the French context, drug consumption rooms appear to have a positive impact on at-risk practices for infectious diseases such as human immunodeficiency virus (HIV) and hepatitis C virus.
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Affiliation(s)
- Laurence Lalanne
- INSERM 1114, Department of Psychiatry and Addictology, University Hospital of Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Department of Psychiatry and Addictology, University Hospital of Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Perrine Roux
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - Cécile Donadille
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - Laelia Briand Madrid
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale, ISSPAM, Marseille, France
| | - Isabelle Célerier
- ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Carole Chauvin
- Centre d'étude des Mouvements Sociaux (Inserm U1276/CNRS UMR8044/EHESS), Paris, France
| | - Naomi Hamelin
- INSERM 1114, Department of Psychiatry and Addictology, University Hospital of Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Charlotte Kervran
- Addiction Team, SANPSY, CNRS UMR 6033, Bordeaux, France
- CH Charles Perrens and CHU de Bordeaux, Pôle inter-établissement Addictologie, Bordeaux, France
- Université Bordeaux, Bordeaux, France
| | - Gwenaëlle Maradan
- ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Marc Auriacombe
- Addiction Team, SANPSY, CNRS UMR 6033, Bordeaux, France
- CH Charles Perrens and CHU de Bordeaux, Pôle inter-établissement Addictologie, Bordeaux, France
- Université Bordeaux, Bordeaux, France
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Marie Jauffret-Roustide
- Centre d'étude des Mouvements Sociaux (Inserm U1276/CNRS UMR8044/EHESS), Paris, France
- British Columbia Center on Substance Use (BCCSU), Vancouver, Canada
- Baldy Center on Law and Social Policy, Buffalo University, New York City, NY, USA
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Dahlby L, Boyd J, Knight R, Philbin M, Small W, Kerr T, McNeil R. The perspectives of street-involved youth who use drugs regarding the acceptability and feasibility of HIV pre-exposure prophylaxis: a qualitative study. AIDS Care 2023; 35:480-487. [PMID: 35698454 PMCID: PMC9930182 DOI: 10.1080/09540121.2022.2085868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 05/31/2022] [Indexed: 10/18/2022]
Abstract
Street-involved youth who use drugs (YWUD) face an elevated risk of HIV acquisition and represent a key population for HIV prevention initiatives, including pre-exposure prophylaxis (PrEP). However, little is known regarding the acceptability and feasibility of PrEP uptake and adherence among this multiply-marginalized population. Semi-structured qualitative interviews were conducted with 24 street-involved YWUD (ages 17-24) to examine their perspectives toward PrEP; youth were recruited through a longitudinal prospective cohort study in Vancouver, Canada. Youth reported high levels of ambivalence toward PrEP despite engagement in HIV-related risk behaviors. This ambivalence was driven by misperceptions regarding HIV transmission, including stigmatizing associations between HIV transmission and personal hygiene. Such misperceptions led participants to enact strategies that were ineffective in preventing HIV transmission. Participants contested their inclusion as a "key population" for PrEP, which limited their enthusiasm for PrEP uptake and adherence. Participants also highlighted that wider social-structural inequities (e.g., housing vulnerability, poverty) that produced HIV-related risks were likely to undermine sustained PrEP use. Findings demonstrate the need for tailored implementation strategies to increase PrEP acceptability, including targeted education and anti-stigma interventions to increase awareness about HIV transmission. Interventions should also target structural inequities in order to fully address HIV risk and PrEP ambivalence.
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Affiliation(s)
- Lucia Dahlby
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
| | - Jade Boyd
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC V6Z 1Y6, Canada
| | - Rod Knight
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC V6Z 1Y6, Canada
| | - Morgan Philbin
- Sociomedical Sciences, Mailman School of Public Health, Columbia University, 722 West 168th St. NY, NY 10032
| | - Will Small
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6
| | - Thomas Kerr
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC V6Z 1Y6, Canada
| | - Ryan McNeil
- British Columbia Centre on Substance Use, 400-1045 Howe Street, Vancouver, BC V6Z 2A9, Canada
- Yale School of Medicine (Internal Medicine), 367 Cedar St, New Haven, CT, 06510
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Broz D, Carnes N, Chapin-Bardales J, Des Jarlais DC, Handanagic S, Jones CM, McClung RP, Asher AK. Syringe Services Programs' Role in Ending the HIV Epidemic in the U.S.: Why We Cannot Do It Without Them. Am J Prev Med 2021; 61:S118-S129. [PMID: 34686281 DOI: 10.1016/j.amepre.2021.05.044] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 05/18/2021] [Accepted: 05/23/2021] [Indexed: 11/17/2022]
Abstract
Diagnoses of HIV among people who inject drugs have increased in the U.S. during 2014-2018 for the first time in 2 decades, and multiple HIV outbreaks have been detected among people who inject drugs since 2015. These epidemiologic trends pose a significant concern for achieving goals of the federal initiative for Ending the HIV Epidemic in the U.S. Syringe services programs are cost effective, safe, and highly effective in reducing HIV transmission and are an essential component of a comprehensive, integrated approach to addressing these concerns. Yet, geographic coverage of these programs remains limited in the U.S., and many jurisdictions continue to have laws and policies that limit or disallow syringe services programs. An in-depth literature review was conducted on the role of syringe services programs in the Ending the HIV Epidemic initiative. Empirical and model-based evidence consistently shows that syringe services programs have the highest impact in HIV prevention when combined with access to medications for substance use disorder and antiretroviral therapy. Their effectiveness is further maximized when they provide services without restrictions and include proven and innovative strategies to expand access to harm-reduction and clinical services (e.g., peer outreach, telehealth). Increasing geographic and service coverage of syringe services programs requires strong and sustainable policy, funding, and community support and will need to address new challenges related to the COVID-19 pandemic. Syringe services programs have a key role in all 4 Ending the HIV Epidemic initiative strategies-Prevent, Diagnose, Treat, and Respond-and thus are instrumental to its success in preventing disease and saving lives.
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Affiliation(s)
- Dita Broz
- Division of HIV Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia.
| | - Neal Carnes
- Division of HIV Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Johanna Chapin-Bardales
- Division of HIV Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Don C Des Jarlais
- Department of Epidemiology, School of Global Health, New York University, New York, New York
| | - Senad Handanagic
- Division of HIV Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Christopher M Jones
- National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia; U.S. Public Health Service Commissioned Corps, Rockville, Maryland
| | - R Paul McClung
- Division of HIV Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention, Atlanta, Georgia; U.S. Public Health Service Commissioned Corps, Rockville, Maryland
| | - Alice K Asher
- Office of Policy, Planning and Partnerships, National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
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A qualitative study of injection and sexual risk behavior among unstably housed people who inject drugs in the context of an HIV outbreak in Northeast Massachusetts, 2018. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2021; 95:103368. [PMID: 34390967 DOI: 10.1016/j.drugpo.2021.103368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 06/21/2021] [Accepted: 06/29/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND To investigate the underlying causes of a sudden increase in HIV among people who inject drugs (PWID) and initiate an appropriate response to the outbreak, we engaged in in-depth qualitative interviews with members of the PWID community in Lawrence and Lowell, Massachusetts. METHODS We interviewed 34 PWID who were currently or recently unstably housed, then transcribed interviews and coded transcripts, grouping codes into categories from which we identified key themes. RESULTS Participants described a heightened threat of overdose prompting PWID to inject together, increasing opportunities for sharing injection equipment. There were misunderstandings about safe injection practices to prevent HIV transmission and a low threshold for injection-related risk taking. Stigma regarding HIV prevented conversations about HIV status. Less thought was given to sexual risks than injection-related risks for HIV transmission. CONCLUSIONS We found multiple facilitators of HIV transmission. Additional HIV education and prevention interventions focusing on both injection and sexual risk practices would benefit this population, in addition to structural interventions such as increased access and availability of syringe service programs.
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Reddon H, Milloy MJ, Wood E, Nosova E, Kerr T, DeBeck K. High-intensity cannabis use and hospitalization: a prospective cohort study of street-involved youth in Vancouver, Canada. Harm Reduct J 2021; 18:53. [PMID: 34001159 PMCID: PMC8130127 DOI: 10.1186/s12954-021-00501-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is concern that cannabis use negatively affects vulnerable groups such as youth; however, the relationship between cannabis use and health care utilization has not been well characterized in this population. We longitudinally evaluated the association between daily cannabis use and hospitalization among a prospective cohort of street-involved youth. METHODS Data were collected from the At-Risk Youth Study (ARYS) in Vancouver, Canada, from September 2005 to May 2015. Participants were interviewed semi-annually and multivariable generalized estimating equation (GEE) logistic regression was used to examine the relationship between daily cannabis use and hospitalization. RESULTS A total of 1216 participants (31.2% female) were included in this analysis, and 373 (30.7%) individuals reported hospitalization at some point during the study period. In a multivariable GEE analysis, daily cannabis use was not significantly associated with hospitalization (Adjusted Odds Ratio [AOR] = 1.17, 95% Confidence interval [CI] = 0.84, 1.65). We did observe a significant interaction between daily cannabis use and sex (AOR = 0.51, 95% CI = 0.34, 0.77), whereby cannabis use was associated with a decreased odds of hospitalization among males (AOR = 0.60, 95% CI = 0.47, 0.78), yet was not significantly associated with hospitalization among females (AOR = 1.19, 95% CI = 0.84, 1.67). CONCLUSIONS The finding that daily cannabis use was not associated with hospitalization among street-involved youth is encouraging given the high rates of cannabis use in this population and the expansion of cannabis legalization and regulation. Future studies, however, are warranted to monitor possible changes in the consequences of cannabis use as cannabis legalization and regulation increase internationally.
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Affiliation(s)
- Hudson Reddon
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- CIHR Canadian HIV Trials Network, 588-1081 Burrard Street, Vancouver, BC, V6B 3E6, Canada
| | - M-J Milloy
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Evan Wood
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Ekaterina Nosova
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
| | - Thomas Kerr
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Kora DeBeck
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada.
- School of Public Policy, SFU Harbour Centre, Simon Fraser University, 515 West Hastings Street, Vancouver, BC, V6B 5K3, Canada.
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Tucker JS, Kennedy DP, Osilla KC, Golinelli D. Motivational network intervention to reduce substance use and increase supportive connections among formerly homeless emerging adults transitioning to housing: study protocol for a pilot randomized controlled trial. Addict Sci Clin Pract 2021; 16:18. [PMID: 33726809 PMCID: PMC7968154 DOI: 10.1186/s13722-021-00227-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/03/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Studies indicate high rates of substance use among youth experiencing homelessness (YEH). Further, the social networks of YEH, although multi-dimensional in composition, are largely comprised of other YEH, substance users, and individuals who do not provide the youth with tangible or emotional support. For YEH who have the opportunity to enter a housing program, helping them to reduce their substance use and strengthen their prosocial supportive connections during this critical transition period may increase their stability and reduce their risk of re-entering homelessness. The goal of this study is to pilot test a brief motivational network intervention (MNI), delivered by case managers, to help former YEH who have recently transitioned to a housing program reduce their substance use and strengthen their prosocial supportive connections. METHODS/DESIGN Up to 60 residents of housing programs in the Los Angeles area will be randomized to receive four sessions of usual case manager support or four sessions of case manager support + MNI. Each MNI session consists of three parts: (1) identifying two goals that are most important for the resident over the next year (e.g., get or keep a job, finish or stay in school, reduce substance use); (2) a network interview with the resident to capture network data pertaining to their interactions in the past 2 weeks; and (3) a discussion between the case manager and the resident of the resulting network visualizations, conducted in a Motivational Interviewing (MI) style, and what role the resident's network may play in reaching their most important goals over the next year. DISCUSSION This study addresses a critical gap by pilot testing a computer-assisted MNI, delivered using MI techniques, that can help case managers work with recent YEH to reduce substance use and increase permanent supportive connections during the critical transitional period from homelessness to housing. Trial registration ClinicalTrials.gov Identifier: NCT04637815. Registered November 10, 2020.
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Affiliation(s)
- Joan S Tucker
- RAND Corporation, 1776 Main Street, Santa Monica, CA, 90407, USA.
| | - David P Kennedy
- RAND Corporation, 1776 Main Street, Santa Monica, CA, 90407, USA
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Morris MD, Yen IH, Shiboski S, Evans JL, Page K. Housing Stability and Hepatitis C Infection for Young Adults Who Inject Drugs: Examining the Relationship of Consistent and Intermittent Housing Status on HCV Infection Risk. J Urban Health 2020; 97:831-844. [PMID: 32901411 PMCID: PMC7704865 DOI: 10.1007/s11524-020-00445-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Housing status affects drug using behaviors, but less is known about the relationship between housing patterns and hepatitis C virus (HCV) infection. HCV-negative young people who inject drugs (PWID) were enrolled into a prospective cohort (2003-2019) with quarterly study visits. We used Cox regression to estimate the independent association of recent housing status (housed vs. unhoused, housing stability, and housing trajectory) on HCV incidence. Among 712 participants, 245 incident HCV infections occurred over 963.8 person-years (py) (cumulative incidence 24.4/100 py). An inverse relationship between time housed and HCV incidence was observed (always unhoused 45.0/100 py, 95% confidence interval (CI) 37.1, 54.5; variably housed 18.0/100 py, 95% CI 15.0, 21.3; and always housed 7.0/100 py, 95% CI 3.0, 17.3). In Cox regression models controlling for confounders, those unhoused versus housed at baseline had a 1.9-fold increased infection risk (95% CI 1.4, 2.6). Those always unhoused versus always housed had a 1.5 times greater risk of HCV (95% CI 1.0, 2.3), and those spending a portion of time in stable housing a lower risk (adjusted relative hazard 0.05, 95% CI 0.3, 0.9) with a similar trend for those being housed for less time. Young adult PWID experiencing both recent and chronic states of being unhoused are at elevated risk for HCV infection. Importantly for this group of PWID, our findings indicate that some frequency of residential housing significantly reduces HCV infection risk.
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Affiliation(s)
- Meghan D Morris
- Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco, 550 16th Street, Box 1224, San Francisco, CA, 94153-1224, USA.
| | - Irene H Yen
- Department of Public Health, School of Social Sciences, Humanities & Arts, University of California, Merced, Merced, CA, USA
| | - Steve Shiboski
- Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco, 550 16th Street, Box 1224, San Francisco, CA, 94153-1224, USA
| | - Jennifer L Evans
- Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco, 550 16th Street, Box 1224, San Francisco, CA, 94153-1224, USA
| | - Kimberly Page
- Department of Internal Medicine, School of Medicine, University of New Mexico Health Sciences Center, MSC10 5550, 1 University of New Mexico, Albuquerque, NM, 87131, USA
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Long-term benefits of providing transitional services to youth aging-out of the child welfare system: Evidence from a cohort of young people who use drugs in Vancouver, Canada. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2020; 85:102912. [PMID: 32889145 DOI: 10.1016/j.drugpo.2020.102912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 07/30/2020] [Accepted: 08/09/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND Youth aging-out of the child welfare system (CWS) experience numerous vulnerabilities including, elevated rates of substance use and substance use disorders. Calls to improve services to transition youth to independence are common; however, evidence of the long-term impacts associated with transitional service utilization is scarce. Further, existing services frequently lack appropriate supports for substance using youth and it is unknown if youth are able to access such services. In the present study, we assess the relationship between transitional service utilization and health and social outcomes among a cohort of people who use drugs (PWUD) that aged-out of the CWS. METHODS Data were obtained from two harmonized cohorts of PWUD in Vancouver, Canada. Those who reported aging-out were asked about service utilization, availability, barriers, and interest across seven categories of transitional services. Multivariable logistic regression analyses were conducted to assess the relationship between having previously utilized transitional services and current health and social outcomes. RESULTS Between December 2014 and November 2017, 217 PWUD reported having previously aged-out of the CWS. Across service categories, reported service utilization prevalence ranged from 16.6-61.8% while unmet demand ranged from 64.8-78.4%. In multivariable analyses, compared to individuals who utilized ≤1 service while aging-out, having utilized 4-7 services was significantly associated with reduced odds of current homelessness (adjusted odds ratio [AOR]=0.29) and engaging in daily drug use (AOR=0.35) (both p<0.05). CONCLUSION Findings suggest that this understudied high-risk population of PWUD and aged-out of the CWS experience long-term benefits associated with transitional service utilization and are interested and willing to engage in these services. However, given high unmet demand, findings also highlight considerable gaps in service delivery and support calls for extending the age of emancipation for all youth in the CWS and in particular, for additional harm reduction and substance use supports embedded into service models.
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Tucker JS, D'Amico EJ, Pedersen ER, Rodriguez A, Garvey R. Study protocol for a group-based motivational interviewing brief intervention to reduce substance use and sexual risk behavior among young adults experiencing homelessness. Addict Sci Clin Pract 2020; 15:26. [PMID: 32723349 PMCID: PMC7390162 DOI: 10.1186/s13722-020-00201-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/17/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Young people experiencing homelessness have alarmingly high rates of alcohol and other drug (AOD) use, which is associated with sexual risk behaviors such as unprotected sex, trading sex, and sex with multiple casual partners. Few risk reduction programs for this population have been developed and rigorously evaluated, particularly those that address both of these interrelated behaviors, use a collaborative and non-judgmental approach, and are feasible to deliver in settings where homeless young people seek services. This paper describes the protocol of a study evaluating a four-session Motivational Interviewing (MI)-based group risk reduction intervention for this population. The protocol has been shown to be efficacious in pilot work over 3 months with 200 homeless young adults [1]. The current study seeks to refine the intervention protocol and evaluate the program on a larger scale. METHODS/DESIGN In a cluster-cross-over randomized controlled trial, 18-25 year olds will receive the AWARE risk reduction program (n = 200) or standard care (n = 200) at one of three drop-in centers serving homeless youth in the Los Angeles area. We will evaluate intervention effects on primary outcomes of AOD use and sexual risk behavior, as well as secondary outcomes of health-related quality of life and social stability, over a 12-month period. DISCUSSION This project has the potential to fill a significant gap in prevention services by demonstrating that a brief intervention, feasible to deliver within settings where young people experiencing homelessness typically seeks services, can significantly reduce the interrelated problems of AOD use and sexual risk behavior. Trial registration ClinicalTrials.gov Identifier: NCT03735784. Registered November 18, 2018, https://clinicaltrials.gov/ct2/show/record/NCT03735784 (retrospectively registered).
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Affiliation(s)
- Joan S Tucker
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States.
| | - Elizabeth J D'Amico
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States
| | - Eric R Pedersen
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States.,Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, 250 Alcazar Street, Suite 2200, Los Angeles, CA, 90033, United States
| | - Anthony Rodriguez
- RAND Corporation, 20 Park Plaza, Suite 920, Boston, MA, 02116, United States
| | - Rick Garvey
- RAND Corporation, 1776 Main Street, PO Box 2136, Santa Monica, CA, 90407-2138, United States
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11
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Rezaei O, Ghiasvand H, Higgs P, Noroozi A, Noroozi M, Rezaei F, Armoon B, Bayani A. Factors associated with injecting-related risk behaviors among people who inject drugs: a systematic review and meta-analysis study. J Addict Dis 2020; 38:420-437. [DOI: 10.1080/10550887.2020.1781346] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Omid Rezaei
- Fellowship of Psychosomatic, Department of Psychiatry, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hesam Ghiasvand
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
- Health Economics Group, Medical School, Saint Luke’s Campus, University of Exeter, Exeter, UK
| | - Peter Higgs
- Department of Public Health, La Trobe University, Melbourne, Australia
| | - Alireza Noroozi
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Noroozi
- Social Determinants of Health Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Fatemeh Rezaei
- Department of Epidemiology and Biostatics, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Bahram Armoon
- Social Determinants of Health Research Center, Saveh University of Medical Sciences, Saveh, Iran
| | - Azadeh Bayani
- Student Research Committee, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Lind C, Walsh C, McCaffrey G, Wardle ML, Johansson B, Juby B. Youth strengths arise from the ashes of adversity. INTERNATIONAL JOURNAL OF ADOLESCENCE AND YOUTH 2018. [DOI: 10.1080/02673843.2018.1528165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Candace Lind
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | - Christine Walsh
- Faculty of Social Work, University of Calgary, Calgary, Alberta, Canada
| | - Graham McCaffrey
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | - Mary-Lynn Wardle
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
| | | | - Brenda Juby
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
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13
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Bardwell G, Boyd J, Kerr T, McNeil R. Negotiating space & drug use in emergency shelters with peer witness injection programs within the context of an overdose crisis: A qualitative study. Health Place 2018; 53:86-93. [PMID: 30059897 DOI: 10.1016/j.healthplace.2018.07.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/07/2018] [Accepted: 07/15/2018] [Indexed: 12/17/2022]
Abstract
Vancouver, Canada is experiencing an overdose crisis due to the proliferation of fentanyl and related analogues and novel overdose response interventions are being implemented across multiple high overdose risk environments, including emergency shelters. We draw on ethnographic fieldwork and qualitative interviews to examine how social, structural, and physical contexts at two emergency shelters implementing a peer-based supervised injection intervention influenced injection drug use and overdose risks. Findings reveal that the implementation of this intervention reduced stigma and shame through the normalization of drug use in shelter spaces, and yet underlying social norms and material constraints led people to inject alone in non-designated injecting spaces. Whereas these spatial dynamics of injection drug use potentially increased overdose vulnerability, an emerging sense of collective responsibility in relation to the overdose crisis led to the routinization of peer witnessing practices across the shelter environment to extend the impact of the intervention.
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Affiliation(s)
- Geoff Bardwell
- British Columbia Centre on Substance Use, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9; Department of Medicine, University of British Columbia, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9.
| | - Jade Boyd
- British Columbia Centre on Substance Use, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9; Department of Medicine, University of British Columbia, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9.
| | - Thomas Kerr
- British Columbia Centre on Substance Use, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9; Department of Medicine, University of British Columbia, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9.
| | - Ryan McNeil
- British Columbia Centre on Substance Use, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9; Department of Medicine, University of British Columbia, St. Paul's Hospital, 400-1045 Howe Street, Vancouver, BC, Canada V6Z 2A9.
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14
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Bozinoff N, Luo L, Dong H, Krüsi A, DeBeck K. Street-involved youth engaged in sex work at increased risk of syringe sharing. AIDS Care 2018; 31:69-76. [PMID: 29999421 DOI: 10.1080/09540121.2018.1497134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Syringe sharing places street-involved young people at risk of acquiring HIV and hepatitis C. While markers of economic marginalization, such as homelessness, have been linked with syringe sharing and have led to targeted interventions, the relationship between syringe sharing and other markers of economic vulnerability, such as sex work, are not well documented among young people. This study examines whether those engaged in sex work are at increased risk of syringe borrowing and syringe lending among street-involved youth who use injection drugs in Vancouver, Canada. Between September 2005 and May 2014, data was collected from the At-Risk Youth Study (ARYS), a prospective cohort of street involved youth aged 14-26. Generalized estimating equations with a confounding model building approach was used to examine the relationship between sex work and syringe borrowing and lending. 498 youth reported injecting drugs at some point during the study period and were therefore included in the analysis. In multivariable analysis, youth who engaged in sex work were at an elevated risk of both syringe borrowing (Adjusted Odds Ratio (AOR) = 2.17, 95% Confidence Interval [CI] = 1.40-3.36) and syringe lending (AOR = 1.66, 95% CI = 1.07-2.59). Our study found that youth engaged in street-based sex work were at a significantly higher risk of both syringe borrowing and lending among youth who use injection drugs in Vancouver. Ready access to clean syringes, safer working conditions for sex workers to enable risk reduction measures, and increased access to addiction treatment are identified as promising opportunities for reducing syringe sharing in this setting.
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Affiliation(s)
- Nikki Bozinoff
- a British Columbia Centre for Excellence in HIV/AIDS , Vancouver , BC , Canada.,b Department of Family and Community Medicine , University of Toronto , Toronto , ON , Canada.,c B.C. Centre on Substance Use , Vancouver , BC , Canada
| | - Lerly Luo
- a British Columbia Centre for Excellence in HIV/AIDS , Vancouver , BC , Canada.,c B.C. Centre on Substance Use , Vancouver , BC , Canada
| | - Huiru Dong
- a British Columbia Centre for Excellence in HIV/AIDS , Vancouver , BC , Canada.,c B.C. Centre on Substance Use , Vancouver , BC , Canada
| | - Andrea Krüsi
- a British Columbia Centre for Excellence in HIV/AIDS , Vancouver , BC , Canada.,c B.C. Centre on Substance Use , Vancouver , BC , Canada.,d Department of Medicine , University of British Columbia , Vancouver , BC , Canada
| | - Kora DeBeck
- a British Columbia Centre for Excellence in HIV/AIDS , Vancouver , BC , Canada.,c B.C. Centre on Substance Use , Vancouver , BC , Canada.,e School of Public Policy , Simon Fraser University , Vancouver , BC , Canada
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15
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Scheim AI, Bardwell G, Rachlis B, Mitra S, Kerr T. Syringe sharing among people who inject drugs in London, Canada. Canadian Journal of Public Health 2018; 109:174-182. [PMID: 29981046 DOI: 10.17269/s41997-018-0058-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/20/2018] [Indexed: 01/20/2023]
Abstract
OBJECTIVES London, Ontario, is facing an outbreak of HIV among people who inject drugs (PWID), as well as persistently high levels of hepatitis C virus (HCV). Syringe sharing is the primary driver of HIV and HCV transmission risks among PWID, however, little is known about factors contributing to syringe sharing in this setting. Therefore, we sought to characterize syringe sharing and its correlates among London PWID. METHODS Between March and April, 2016, PWID participated in a survey administered by peer research associates as part of the Ontario Integrated Supervised Injection Services Feasibility Study. Bivariable and multivariable logistic regression models examined associations with syringe sharing (borrowing or lending previously used syringes) over the previous 6 months. A sub-analysis described patterns of borrowing and lending by self-reported HIV and HCV statuses. RESULTS Of 198 PWID, 44 (22%) reported syringe sharing in the past 6 months. In the multivariable analysis, selling drugs (adjusted odds ratio; AOR = 1.92, 95% CI = 1.20-3.08), daily crystal methamphetamine injection (AOR = 1.66, 95% CI = 1.07-2.59), and identifying as HIV-positive (AOR = 3.11, 95% CI = 1.61-6.01) were independently associated with increased syringe sharing. While not independently associated with syringe sharing, problems accessing syringes were common (13-50%). Self-reported HIV-positive respondents were more likely to report syringe borrowing (p < 0.001), but not lending (p = 0.26). CONCLUSION We observed a high rate of syringe sharing among London PWID, with sharing being associated with high-intensity injection of crystal methamphetamine, as well as with involvement in drug sales. Considering the current HIV outbreak in London, multi-level prevention efforts are urgently needed.
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Affiliation(s)
- Ayden I Scheim
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, ON, N6A 5C1, Canada.,Division of Infectious Diseases and Global Public Health, University of California San Diego School of Medicine, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Geoff Bardwell
- British Columbia Centre on Substance Use, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada.,Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
| | - Beth Rachlis
- Ontario HIV Treatment Network, 1300 Yonge Street, Suite 600, Toronto, ON, M4T 1X3, Canada.,Division of Clinical Public Health, Dalla Lana School of Public Health, University of Toronto, 155 College Street West, 6th floor, Toronto, ON, M5T 3M7, Canada
| | - Sanjana Mitra
- British Columbia Centre on Substance Use, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada.,Interdisciplinary Studies, University of British Columbia, 270-2357 Main Mall, Vancouver, British Columbia, V6T 1Z4, Canada
| | - Thomas Kerr
- British Columbia Centre on Substance Use, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada. .,Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.
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16
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Strike C, Miskovic M. Scoping out the literature on mobile needle and syringe programs-review of service delivery and client characteristics, operation, utilization, referrals, and impact. Harm Reduct J 2018; 15:6. [PMID: 29422042 PMCID: PMC5806231 DOI: 10.1186/s12954-018-0212-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/31/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Needle and syringe program (NSP) service delivery models encompass fixed sites, mobile services, vending machines, pharmacies, peer NSPs, street outreach, and inter-organizational agreements to add NSP services to other programs. For programs seeking to implement or improve mobile services, access to a synthesis of the evidence related to mobile services is beneficial, but lacking. METHODS We used a scoping study method to search MEDLINE, PSYCHInfo, Embase, Scopus, and Sociological for relevant literature. We identified 39 relevant manuscripts published between 1975 and November 2017 after removing duplicates and non-relevant manuscripts from the 1313 identified by the search. RESULTS Charting of the data showed that these publications reported findings related to the service delivery model characteristics, client characteristics, service utilization, specialized interventions offered on mobile NSPs, linking clients to other services, and impact on injection risk behaviors. Mobile NSPs are implemented in high-, medium-, and low-income countries; provide equipment distribution and many other harm reduction services; face limitations to service complement, confidentiality, and duration of interactions imposed by physical space; adapt to changes in locations and types of drug use; attract people who engage in high-risk/intensity injection behavior and who are often not reached by other service models; and may lead to reduced injection-related risks. DISCUSSION It is not clear from the literature reviewed, what are, or if there are, a "core and essential" complement of services that mobile NSPs should offer. Decisions about service complement for mobile NSPs need to be made in relation to the context and also other available services. Reports of client visits to mobile NSP provide a picture of the volume and frequency of utilization but are difficult to compare given varied measures and reference periods. CONCLUSION Mobile NSPs have an important role to play in improving HIV and HCV prevention efforts across the world. However, more work is needed to create clearer assessment metrics and to improve access to NSP services across the world.
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Affiliation(s)
- Carol Strike
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T3M7 Canada
| | - Miroslav Miskovic
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T3M7 Canada
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17
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Pilarinos A, Kennedy MC, McNeil R, Dong H, Kerr T, DeBeck K. The association between residential eviction and syringe sharing among a prospective cohort of street-involved youth. Harm Reduct J 2017; 14:24. [PMID: 28499382 PMCID: PMC5429556 DOI: 10.1186/s12954-017-0150-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/01/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Syringe sharing is a high-risk practice associated with the transmission of infectious diseases, such as HIV and HCV. While youth who contend with housing instability are known to be more likely to engage in high-risk substance use, the potential relationship between being evicted from housing and syringe sharing has not been examined. This study assessed whether residential eviction was associated with syringe sharing among street-involved youth in Vancouver, Canada. METHODS Data were derived from the At-Risk Youth Study (ARYS), a prospective cohort of street-involved youth who use drugs age 14-26 in Vancouver, Canada. The study period was June 2007 to May 2014, and the potential relationship between residential eviction and syringe sharing was analyzed using multivariable generalized estimating equations (GEE) logistic regression. RESULTS Among 405 street-involved youth who injected drugs, 149 (36.8%) reported syringe sharing, defined as borrowing or lending a syringe, at some point during the study period. In a multivariable GEE analysis, recent residential eviction remained independently associated with syringe sharing (adjusted odds ratio (AOR) = 1.72, 95% confidence interval (CI): 1.16-2.57), after adjusting for potential confounders. CONCLUSIONS Syringe sharing was significantly elevated among youth who had recently been evicted from housing. These findings indicate that policy and programmatic interventions that increase housing stability may help mitigate high-risk substance use practices among vulnerable youth.
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Affiliation(s)
- Andreas Pilarinos
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.,Interdisciplinary Studies Graduate Program, University of British Columbia, 270-2357 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Mary Clare Kennedy
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.,School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Ryan McNeil
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.,Division of AIDS, Department of Medicine, University of British Columbia, 667-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
| | - Huiru Dong
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
| | - Thomas Kerr
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.,Division of AIDS, Department of Medicine, University of British Columbia, 667-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
| | - Kora DeBeck
- BC Centre on Substance Use, British Columbia Centre for Excellence in HIV/AIDS, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada. .,School of Public Policy, Simon Fraser University, 3277-515 Hastings W Street, Vancouver, BC, V6B 5K3, Canada.
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