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Guerin AA, Bridson T, Plapp HM, Bedi G. A systematic review and meta-analysis of health, functional, and cognitive outcomes in young people who use methamphetamine. Neurosci Biobehav Rev 2023; 153:105380. [PMID: 37678571 DOI: 10.1016/j.neubiorev.2023.105380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023]
Abstract
Methamphetamine use typically starts in adolescence, and early onset is associated with worse outcomes. Yet, health, functional, and cognitive outcomes associated with methamphetamine use in young people are not well understood. The aim of this study was to comprehensively assess the evidence on health, functional, and cognitive outcomes in young people (10-25 years-old) who use methamphetamine. Sixty-six studies were included. The strongest association observed was with conduct disorder, with young people who use methamphetamine some 13 times more likely to meet conduct disorder criteria than controls. They were also more likely to have justice system involvement and to perpetrate violence against others. Educational problems were consistently associated with youth methamphetamine use. The cognitive domain most reliably implicated was inhibitory control. Key limitations in the literature were identified, including heterogenous measurement of exposure and outcomes, lack of adequate controls, and limited longitudinal evidence. Outcomes identified in the present review - suggesting complex and clinically significant behavioural issues in this population - are informative for the development of future research and targeted treatments.
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Affiliation(s)
- Alexandre A Guerin
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia; Orygen, Melbourne, Australia.
| | - Tahnee Bridson
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia; Orygen, Melbourne, Australia
| | - Helena M Plapp
- Orygen, Melbourne, Australia; Royal Melbourne Hospital, Melbourne, Australia
| | - Gillinder Bedi
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia; Orygen, Melbourne, Australia
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2
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Armoon B, Griffiths MD, Mohammadi R. The Global Distribution and Epidemiology of Psychoactive Substance Use and Injection Drug Use Among Street-Involved Children and Youth: A Meta-Analysis. Subst Use Misuse 2023; 58:746-764. [PMID: 36924274 DOI: 10.1080/10826084.2023.2181036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Background: Globally, street-involved children and youth (SICY) who work and live on/of the streets are at higher risk of increased psychoactive substances and injecting drug use. Objectives: The present study aimed to identify the prevalence, distribution, sociodemographic factors, and risk-taking behaviors associated with psychoactive substances and injecting drug use among SICY. Methods: Studies in English published from December 1 1985 to July 1 2022, were searched for on PubMed, Scopus, Cochrane, and Web of Science to identify primary studies on psychoactive substances and injecting drug use among SICY. The pooled-prevalence estimates were obtained using a robust fixed-effects model. Results: The most commonly reported life-time and current psychoactive substance was tobacco followed by cannabis, LSD/ecstasy, cocaine, methamphetamine, heroin and injection drug use. The results showed that life-time and current prevalence of methamphetamine and cannabis use, as well as life-time prevalence of cocaine, LSD/ecstasy, heroin, tobacco, and injecting drug use increased as age rose while current prevalence of cocaine and tobacco use decreased as age rose. SICY who were male, homeless, had parents who had died, had history of substance use among family members or best friends, had experienced violence, had casual sex partners, had a history of working in the sex trade, and had unprotected sex were all related to psychoactive substance use and injecting drug use. Conclusions: Research examining this population suffers from lack of studies, therefore, improving the knowledge for interventions aimed at reducing risk behaviors, particularly those related to the transmission of sexually transmitted infections such as HIV is of great importance.
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Affiliation(s)
- Bahram Armoon
- Social Determinants of Health Research Center, Saveh University of Medical Sciences, Saveh, Iran
| | - Mark D Griffiths
- International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, UK
| | - Rasool Mohammadi
- Social Determinants of Health Research Center, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
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3
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Petruželka B, Kupka P, Walach V. Predictors of methamphetamine use in disadvantaged neighbourhoods in Czechia. Cent Eur J Public Health 2022; 30:253-260. [PMID: 36718928 DOI: 10.21101/cejph.a7121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/09/2022] [Indexed: 02/01/2023]
Abstract
OBJECTIVE This study aims to identify predictors of the lifetime prevalence of methamphetamine use in the population of Czech disadvantaged neighbourhoods. METHODS Using data from a face-to-face representative survey, two types of analysis were performed. A bivariate analysis (unadjusted odds ratios estimated with logistic regression) was conducted to determine the relationship with a dependent variable (lifetime prevalence of methamphetamine use). Subsequently, three multivariate binomial logistic regression models (socio-demographic and socioeconomic status, incarceration and victimization, mobility and space) were conducted to control for the influence of other variables. RESULTS In a series of multinomial logit models, we have found the following predictors to be significantly associated with lifetime prevalence of methamphetamine use: age, gender, Roma ethnicity, net monthly household income, unstable housing, lifetime experience with incarceration, lifetime experience with discrimination, urban-rural divide, and index of rural peripheralization. CONCLUSIONS The results suggest that methamphetamine users are multidimensionally disadvantaged and therefore constitute a vulnerable group with specific needs. This should be considered when designing services and policies targeting methamphetamine use in disadvantaged neighbourhoods.
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Affiliation(s)
- Benjamin Petruželka
- Department of Addictology, General University Hospital in Prague, Prague, Czech Republic.,Department of Addictology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Kupka
- Department of Social Work, Faculty of Social Studies, University of Ostrava, Ostrava, Czech Republic
| | - Václav Walach
- Department of Social Work, Faculty of Social Studies, University of Ostrava, Ostrava, Czech Republic
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4
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Gjersing L, Bretteville-Jensen AL. Characteristics and risk of incarceration among "hard-to-reach" people who use drugs: A five-year prospective cohort study combining self-reports and registry data. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2021; 95:103288. [PMID: 34004380 DOI: 10.1016/j.drugpo.2021.103288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 04/12/2021] [Accepted: 04/22/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Incarcerations are associated with an increased risk of morbidity and mortality among people who use drugs (PWUD). In a sample of 884 PWUD, we examine and estimate the risk of incarcerations (i.e., number, duration, and most serious offense). METHODS In this prospective cohort study, PWUD were recruited from street- and low-threshold services in seven Norwegian cities in 2013 (Sept-Nov), and followed through the Correctional Service Registry until 20.12.2018. The risk of incarceration during follow-up was examined with multivariable logistic (no incarceration vs. at least one) and multinomial regression models ("no incarcerations", vs. "1″, "≥2″), while accounting for gender, age, homelessness/shelter use, opioid substitution treatment, illegal income sources, injecting behaviours, previous incarcerations, and recruitment city. RESULTS During follow-up, there were in total 662 incarceration episodes, and 44.7% of the participants were incarcerated at least once. Overall, 37.5% of those incarcerated had at least one episode due to a drug offense. The average incarceration duration was 65.2 days with 3.5% of the episodes lasting ≥one year. Gender (male), homelessness/shelter use, illegal income sources, injecting stimulants, and previous incarcerations increased the odds of incarceration, while older age decreased the odds. Gender (male), younger age, self-reported theft or theft and dealing, injecting stimulants or heroin and stimulants and previous incarcerations increased the risk of multiple incarcerations. CONCLUSION In a five-year prospective study of PWUD, incarcerations were common, and short-term sentences and recidivism were the norm. This is of concern as incarcerations add to an already elevated morbidity and mortality risk in this population.
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Affiliation(s)
- Linn Gjersing
- Norwegian Institute of Public Health, Department of Alcohol, Tobacco and Drugs, Postboks 222 Skøyen, 0213 Oslo, Norway.
| | - Anne Line Bretteville-Jensen
- Norwegian Institute of Public Health, Department of Alcohol, Tobacco and Drugs, Postboks 222 Skøyen, 0213 Oslo, Norway
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5
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Damon W, McNeil R, Milloy MJ, Nosova E, Kerr T, Hayashi K. Residential eviction predicts initiation of or relapse into crystal methamphetamine use among people who inject drugs: a prospective cohort study. J Public Health (Oxf) 2020; 41:36-45. [PMID: 29425315 DOI: 10.1093/pubmed/fdx187] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 11/30/2017] [Accepted: 12/20/2017] [Indexed: 02/03/2023] Open
Abstract
Reports of increasing methamphetamine use among vulnerable populations may be attributed in part to the adaptive use of stimulants in response to the loss of stable housing through residential eviction. We employed multivariable recurrent event extended Cox regression to examine the independent association between recent evictions and initiation of or relapse into crystal methamphetamine use among people who inject drugs in Vancouver, Canada enrolled in two prospective cohort studies. In a multivariable analysis, eviction remained independently associated with methamphetamine initiation or relapse (adjusted hazard ratio = 1.90; 95% confidence interval: 1.31-2.75). Findings demonstrate the need to secure tenancies for drug-using populations to reduce harms.
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Affiliation(s)
- William Damon
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada
| | - Ryan McNeil
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada
| | - M-J Milloy
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada
| | - Ekaterina Nosova
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada
| | - Thomas Kerr
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada
| | - Kanna Hayashi
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, Canada.,Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada
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6
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Kakchapati S, Shrestha B, Li DY, Rajbhandari R, Poudel T. Drug use, injecting behaviors, and survival sex among street children and youths in Kathmandu valley, Nepal. Int J STD AIDS 2017; 29:588-597. [PMID: 29264955 DOI: 10.1177/0956462417746532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A disproportionate number of street children use and inject drugs and engage in survival sex as coping mechanisms. This study aimed to determine the prevalence of drug use, injecting drugs, survival sex, and condom use and determinants associated with these behaviors among street children. Cross-sectional surveys were conducted in 2016 with an aim to sample 350 street children and youths in Kathmandu Valley, Nepal. Information about sociodemographic characteristics, injecting drugs, sexual risk behaviors, and biological specimens for HIV testing were obtained. The logistic regression model was used to identify the determinants associated with drug use, injecting drugs, survival sex, and condom use during last sex. Variables that were significantly associated with being a current drug user (versus never) in the presence of other variables included being a rag picker (adjusted odds ratio [AOR] = 3.2; 95% confidence interval [95% CI] = 1.73-5.9), history of imprisonment (AOR = 2.21; 95% CI = 1.21-4.04), alcohol consumption (AOR = 2.66; 95% CI = 1.46-4.84), and solvent sniffing (AOR = 5.12; 95% CI = 2.74-9.59). Variables that were significantly predictive of injecting drugs (versus never) in the presence of other variables include being 17 years old (AOR = 3.42; 95% CI = 1.11-10.55) and being a rag picker (AOR = 3.5; 95% CI = 1.25-9.75). Variables that were significantly associated with having survival sex (versus never) in the presence of other variables include being 17 years old (AOR = 3.58; 95% CI = 1.31-9.81) and having forced sex (AOR = 9.62; 95% CI = 3.21-28.8). Drug use and survival sex are major coping mechanisms among street children in Kathmandu Valley and are associated with many risk behaviors. Targeted programs should be implemented to meet their special needs.
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Affiliation(s)
- Sampurna Kakchapati
- 1 Department of Mathematics and Computer Science, Faculty of Science and Technology, 65108 Prince of Songkla University, Pattani , Thailand
| | | | - Dan Y Li
- 3 59431 Touro University California , Vallejo, CA, USA
| | | | - Tarun Poudel
- 5 National Centre for AIDS and STD Control, Kathmandu, Nepal
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7
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Argento E, Strathdee SA, Goldenberg S, Braschel M, Montaner J, Shannon K. Violence, trauma and living with HIV: Longitudinal predictors of initiating crystal methamphetamine injection among sex workers. Drug Alcohol Depend 2017; 175:198-204. [PMID: 28448903 PMCID: PMC5496650 DOI: 10.1016/j.drugalcdep.2017.02.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/04/2017] [Accepted: 02/16/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Despite rapid increases in crystal methamphetamine (CM) use worldwide and established gendered patterns of use, empirical research on CM injection initiation among sex workers is limited. Given the wide range of harms associated with CM, alongside stimulant effects including sexual dis-inhibition and prolonged awake-ness, this study aimed to longitudinally investigate socio-structural predictors of initiating CM injection among sex workers in Vancouver, Canada. METHODS Data (2010-2014) were drawn from a community-based cohort of women sex workers: AESHA (An Evaluation of Sex Workers Health Access). Participants completed bi-annual interviewer-administered questionnaires and HIV/STI testing. Kaplan Meier methods and Cox proportional hazards regression were used to model predictors of CM injection initiation among CM injection-naïve participants. RESULTS Of 455 participants eligible at baseline, 14.3% (n=65) injected CM for the first time over follow-up, with an incidence density of 6.79 per 100 person-years (95% Confidence Interval [CI] 5.30-8.69). In multivariable analysis, injection heroin use (Adjusted Hazard Ratio [AHR] 6.11; 95%CI 3.24-11.52), having an intimate partner who injects drugs (AHR 2.93; 95%CI 1.57-5.46), workplace violence (AHR 2.85; 95%CI 1.74-4.67), HIV seropositivity (AHR 2.69; 95%CI 1.45-5.00), and childhood abuse (AHR 1.86; 95%CI 0.99-3.49) were independently associated with initiating CM injection. CONCLUSIONS Findings underscore the gendered and social risk environment of CM injection initiation among sex workers. The strong influences of historical/workplace violence, coupled with heroin injection (known to be self-medicating for post-traumatic stress) as a primary risk pathway, emphasize the urgency of increasing access to integrated, trauma-informed addiction treatment and HIV care for marginalized women.
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Affiliation(s)
- Elena Argento
- Gender and Sexual Health Initiative, BC Centre for Excellence in HIV/AIDS, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6,Interdisciplinary Studies Graduate Program, University of British Columbia, 2357 Main Mall, Vancouver, BC, Canada V6T 1Z4
| | - Steffanie A. Strathdee
- Department of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, USA 92093-0507
| | - Shira Goldenberg
- Gender and Sexual Health Initiative, BC Centre for Excellence in HIV/AIDS, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6,Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada V5A 1S6
| | - Melissa Braschel
- Gender and Sexual Health Initiative, BC Centre for Excellence in HIV/AIDS, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6
| | - Julio Montaner
- Gender and Sexual Health Initiative, BC Centre for Excellence in HIV/AIDS, St. Paul’s Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6,Department of Medicine, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC, Canada V6T 1Z3
| | - Kate Shannon
- Gender and Sexual Health Initiative, BC Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada; Department of Medicine, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC, V6T 1Z3, Canada.
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8
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McCuish EC. Substance Use Profiles Among Juvenile Offenders: A Lifestyles Theoretical Perspective. JOURNAL OF DRUG ISSUES 2017. [DOI: 10.1177/0022042617699197] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Base rates of illicit substances such as cocaine, crack cocaine, and heroin are typically low in community-based studies, which often inhibit more complex multivariate analysis. Additionally, single-item measures and aggregate scales mask within-group differences among those showing versatility in their substance use. Latent class analysis was used to model the substance use profiles of adjudicated female ( n = 98) and male ( n = 378) youth. Alcohol, marijuana, acid, mushrooms, ecstasy, cocaine, crack cocaine, heroin, crystal methamphetamine, and nonmedical use of prescription pills were used to define latent profiles of substance use. Three latent classes were identified that were qualitatively different across males and females. Multinomial logistic regression analyses indicated that time spent outside of the home of the biological parents, early substance use, and parental substance abuse were informative of the use of substances such as cocaine, crack cocaine, and heroin. Implications for more individualized treatment strategies are discussed.
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9
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Anderson-Carpenter KD, Fletcher JB, Reback CJ. Associations between Methamphetamine Use, Housing Status, and Incarceration Rates among Men Who Have Sex with Men and Transgender Women. JOURNAL OF DRUG ISSUES 2017; 47:383-395. [PMID: 28670005 DOI: 10.1177/0022042617696917] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present study examined associations between methamphetamine use and social factors among men who have sex with men (MSM) and transgender women. Over a four-year period, 7,419 HIV outreach encounters were conducted with MSM (n=6,243) and transgender women (n=1,176). Logistic and negative binomial regressions estimated associations between sociodemographics, incarceration history, housing status, and methamphetamine use. Incarceration history was associated with marginal housing or homelessness (AOR=3.4) and with increased likelihood (AOR = 6.00) and rate (AIRR = 3.57) of methamphetamine use. African American/Black MSM and transgender women were more likely to report a recent incarceration history compared to non-African American/Black participants (AOR=2.18). Incarceration history was associated with a HIV-positive status (AOR=1.69), and transgender women were 5.2 times more likely to report recent incarceration relative to MSM. Understanding these associations may provide a basis for developing interventions that account for the social factors influencing health outcomes among these high-risk populations.
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Affiliation(s)
| | | | - Cathy J Reback
- University of California, Los Angeles, Friends Research Institute, Inc
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10
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Phillips TJ, Mootz JRK, Reed C. Identification of Treatment Targets in a Genetic Mouse Model of Voluntary Methamphetamine Drinking. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2016; 126:39-85. [PMID: 27055611 DOI: 10.1016/bs.irn.2016.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Methamphetamine has powerful stimulant and euphoric effects that are experienced as rewarding and encourage use. Methamphetamine addiction is associated with debilitating illnesses, destroyed relationships, child neglect, violence, and crime; but after many years of research, broadly effective medications have not been identified. Individual differences that may impact not only risk for developing a methamphetamine use disorder but also affect treatment response have not been fully considered. Human studies have identified candidate genes that may be relevant, but lack of control over drug history, the common use or coabuse of multiple addictive drugs, and restrictions on the types of data that can be collected in humans are barriers to progress. To overcome some of these issues, a genetic animal model comprised of lines of mice selectively bred for high and low voluntary methamphetamine intake was developed to identify risk and protective alleles for methamphetamine consumption, and identify therapeutic targets. The mu opioid receptor gene was supported as a target for genes within a top-ranked transcription factor network associated with level of methamphetamine intake. In addition, mice that consume high levels of methamphetamine were found to possess a nonfunctional form of the trace amine-associated receptor 1 (TAAR1). The Taar1 gene is within a mouse chromosome 10 quantitative trait locus for methamphetamine consumption, and TAAR1 function determines sensitivity to aversive effects of methamphetamine that may curb intake. The genes, gene interaction partners, and protein products identified in this genetic mouse model represent treatment target candidates for methamphetamine addiction.
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Affiliation(s)
- T J Phillips
- Methamphetamine Abuse Research Center, Oregon Health & Science University, Portland, OR, United States; Veterans Affairs Portland Health Care System, Portland, OR, United States.
| | - J R K Mootz
- Methamphetamine Abuse Research Center, Oregon Health & Science University, Portland, OR, United States
| | - C Reed
- Methamphetamine Abuse Research Center, Oregon Health & Science University, Portland, OR, United States
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11
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Green S, Foran J, Kouyoumdjian FG. Access to primary care in adults in a provincial correctional facility in Ontario. BMC Res Notes 2016; 9:131. [PMID: 26923923 PMCID: PMC4770553 DOI: 10.1186/s13104-016-1935-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 02/12/2016] [Indexed: 01/21/2023] Open
Abstract
Background Little is known about access to primary care either prior to or following incarceration in Canada. International data demonstrate that the health of people in prisons and jails is poor, and access to primary care in the community may be inadequate for incarcerated persons. We aimed to describe the primary care experience of adults in custody in a provincial correctional facility in Ontario in the 12 months prior to admission. Methods We conducted a written survey, and invited all persons in the institution to participate, excluding those in segregation. Results One hundred and twenty-five persons participated, 16.8 % of whom were women. The median age was 33. In the 12 months prior to admission to custody, 32.2 % (95 % CI 23.5–40.8 %) of respondents did not have a family doctor or other primary care provider and 48.2 % (95 % CI 38.8–57.6 %) had unmet health needs. Participants reported a mean of 2.1 (SD = 2.8) emergency department visits in the 12 months prior to admission. Conclusions Study participants report a lack of access to primary care, a high mean number of emergency department visits, and high unmet health care needs in the 12 months prior to incarceration. Time in custody may present an opportunity for connecting this population with primary care and improving health.
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Affiliation(s)
- Samantha Green
- Department of Family and Community Medicine, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B 1W8, Canada.
| | - Jessica Foran
- Department of Political Science, McMaster University, Hamilton, ON, Canada.
| | - Fiona G Kouyoumdjian
- Centre for Research on Inner City Health, St. Michael's Hospital, Toronto, ON, Canada.
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12
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Barker B, Alfred GT, Fleming K, Nguyen P, Wood E, Kerr T, DeBeck K. Aboriginal street-involved youth experience elevated risk of incarceration. Public Health 2015; 129:1662-8. [PMID: 26390949 DOI: 10.1016/j.puhe.2015.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 07/29/2015] [Accepted: 08/06/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Past research has identified risk factors associated with incarceration among adult Aboriginal populations; however, less is known about incarceration among street-involved Aboriginal youth. Therefore, we undertook this study to longitudinally investigate recent reports of incarceration among a prospective cohort of street-involved youth in Vancouver, Canada. STUDY DESIGN Prospective cohort study. METHODS Data were collected from a cohort of street-involved, drug-using youth from September 2005 to May 2013. Multivariate generalized estimating equation analyses were employed to examine the potential relationship between Aboriginal ancestry and recent incarceration. RESULTS Among our sample of 1050 youth, 248 (24%) reported being of aboriginal ancestry, and 378 (36%) reported being incarcerated in the previous six months at some point during the study period. In multivariate analysis controlling for a range of potential confounders including drug use patterns and other risk factors, Aboriginal ancestry remained significantly associated with recent incarceration (adjusted odds ratio [AOR] = 1.44; 95% confidence interval [CI]: 1.12-1.86). CONCLUSIONS Even after adjusting for drug use patterns and other risk factors associated with incarceration, this study found that Aboriginal street-involved youth were still significantly more likely to be incarcerated than their non-Aboriginal peers. Given the established harms associated with incarceration these findings underscore the pressing need for systematic reform including culturally appropriate interventions to prevent Aboriginal youth from becoming involved with the criminal justice system.
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Affiliation(s)
- B Barker
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada; Interdisciplinary Studies Graduate Program, University of British Columbia, Canada
| | - G T Alfred
- Indigenous Governance Program, University of Victoria, Canada
| | - K Fleming
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada
| | - P Nguyen
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada
| | - E Wood
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada; Division of AIDS, Department of Medicine, University of British Columbia, Canada
| | - T Kerr
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada; Division of AIDS, Department of Medicine, University of British Columbia, Canada
| | - K DeBeck
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, Canada; School of Public Policy, Simon Fraser University, Canada.
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13
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Quinn B, Stoové M, Dietze P. One-year changes in methamphetamine use, dependence and remission in a community-recruited cohort. JOURNAL OF SUBSTANCE USE 2015. [DOI: 10.3109/14659891.2015.1018972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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14
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Phillips M, Richardson L, Wood E, Nguyen P, Kerr T, DeBeck K. High-Intensity Drug Use and Health Service Access Among Street-Involved Youth in a Canadian Setting. Subst Use Misuse 2015; 50:1805-13. [PMID: 26642870 PMCID: PMC4820061 DOI: 10.3109/10826084.2015.1058825] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND/OBJECTIVES Addiction severity has been associated with numerous social- and health-related harms. This study sought to examine the prevalence and correlates of high-intensity drug use among street-involved youth in a Canadian setting with a focus on high-risk drug use practices and health service access. METHODS Data were derived from the At-Risk Youth Study, a Vancouver-based prospective cohort of street-involved youth aged 14-26. We used generalized estimating equations to examine variables associated with high-intensity drug use, defined as daily use of crack cocaine, cocaine, heroin, or crystal methamphetamine. RESULTS From September 2005 to November 2012, of 1017 youth included in the analyses, 529 (52%) reported high-intensity drug use as defined above at least once during the study period. In a multivariate analysis, older age (Adjusted Odds Ratio [AOR] = 1.47); residing in the Downtown Eastside of Vancouver (AOR = 1.46); homelessness (AOR = 1.30); recent incarceration (AOR = 1.25); inability to access addiction treatment (AOR = 1.42); and crack pipe sharing and/or used syringe injecting (AOR = 2.64), were all positively and independently associated with high-intensity drug use (p < 0.05). The most common barrier to accessing addiction treatment reported by these youth was long waiting lists. CONCLUSIONS High-intensity drug use among street-involved youth was prevalent and associated with structural and geographical disadvantages in addition to high-risk drug administration practices. Youth reporting more frequent drug use also reported barriers to accessing addiction treatment, highlighting the need to expand addiction services tailored to youth at greatest risk of harm from illicit drug use and street-involvement.
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Affiliation(s)
- Mark Phillips
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
| | - Lindsey Richardson
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
| | - Evan Wood
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
| | - Paul Nguyen
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
| | - Thomas Kerr
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
| | - Kora DeBeck
- a BC Centre for Excellence in HIV/AIDS , Urban Health Research Initiative , Vancouver , Canada
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Wahlstrom LC, Scott JP, Tuliao AP, DiLillo D, McChargue DE. Posttraumatic stress disorder symptoms, emotion dysregulation, and aggressive behavior among incarcerated methamphetamine users. J Dual Diagn 2015; 11:118-27. [PMID: 25781457 DOI: 10.1080/15504263.2015.1025026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Methamphetamine use remains a prevalent problem in the United States and is linked to numerous deleterious outcomes, including aggressive behavior, criminal activity, and incarceration. Given these associations, a greater understanding of factors that contribute to aggression among users of methamphetamine is needed, particularly within criminal justice settings, where users of this drug are overrepresented. METHODS The present study examined the relationships between posttraumatic stress disorder (PTSD) symptoms and emotion dysregulation and in-prison physical aggression among incarcerated males who identified as methamphetamine users (N = 60). RESULTS Participants' average age was 34.4 years (SD = 7.9), and they were predominantly European American (n = 48, 80%), had spent an average of 6.53 years incarcerated (SD = 4.64), and perpetrated about 1.54 acts of aggression (SD = 6.74) during the past three months. Bivariate correlations found that greater PTSD symptoms (p < .001), greater impulse control difficulties (p < .001), and limited access to emotion regulation strategies (p < .05) were associated with aggression perpetrated in prison. However, results from multiple regression analyses indicated that only PTSD symptoms (p <.001) and nonacceptance of emotional responses (p < .03) were predictive of aggression. Regression analyses also suggested that impulse control difficulties (p < .001), limited access to emotion regulation strategies (p < .04), and nonacceptance of emotional responses (p < .001) interacted with PTSD symptoms to predict increased aggressive behavior. The first interaction ran counter to study hypotheses: At greater levels of PTSD symptoms, those with greater acceptance of emotional responses reported greater aggression perpetration than those with lesser acceptance of emotional responses. The other two interactions were in line with hypotheses, showing that at greater levels of PTSD symptoms, those with greater impulse control difficulties (or lesser access to emotion regulation strategies) reported more aggressive behaviors. CONCLUSIONS Consistent with theories of aggression, study findings suggest that PTSD symptoms bolster the risk of aggression via various forms emotion dysregulation. Results shed light on potential mechanisms that promote in-prison aggression and violent recidivism among this population.
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Fast D, Kerr T, Wood E, Small W. The multiple truths about crystal meth among young people entrenched in an urban drug scene: a longitudinal ethnographic investigation. Soc Sci Med 2014; 110:41-8. [PMID: 24721446 DOI: 10.1016/j.socscimed.2014.03.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 03/06/2014] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
Abstract
Transitions into more harmful forms of illicit drug use among youth have been identified as important foci for research and intervention. In settings around the world, the transition to crystal methamphetamine (meth) use among youth is considered a particularly dangerous and growing problem. Epidemiological evidence suggests that, particularly among young, street-involved populations, meth use is associated with numerous sex- and drug-related "risks behaviors" and negative health outcomes. Relatively few studies, however, have documented how youth themselves understand, experience and script meth use over time. From 2008 to 2012, we conducted over 100 in-depth interviews with 75 street-entrenched youth in Vancouver, Canada, as well as ongoing ethnographic fieldwork, in order to examine youth's understandings and experiences of meth use in the context of an urban drug scene. Our findings revealed positive understandings and experiences of meth in relation to other forms of drug addiction and unaddressed mental health issues. Youth were simultaneously aware of the numerous health-related harms and social costs associated with heavy meth use. Over time, positive understandings of meth may become entirely contradictory to a lived reality in which escalating meth use is a factor in further marginalizing youth, although this may not lead to cessation of use. Recognition of these multiple truths about meth, and the social structural contexts that shape the scripting of meth use among youth in particular settings, may help us to move beyond moralizing debates about how to best educate youth on the "risks" associated with meth, and towards interventions that are congruent with youth's lived experiences and needs across the lifecourse.
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Affiliation(s)
- Danya Fast
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, B.C., Canada V6Z 1Y6.
| | - Thomas Kerr
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, B.C., Canada V6Z 1Y6; Department of Medicine, University of British Columbia, Canada.
| | - Evan Wood
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, B.C., Canada V6Z 1Y6; Department of Medicine, University of British Columbia, Canada.
| | - Will Small
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, B.C., Canada V6Z 1Y6; Faculty of Health Sciences, Simon Fraser University, Canada.
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Omura JD, Wood E, Nguyen P, Kerr T, DeBeck K. Incarceration among street-involved youth in a Canadian study: implications for health and policy interventions. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2013; 25:291-6. [PMID: 24405564 DOI: 10.1016/j.drugpo.2013.10.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/23/2013] [Accepted: 10/27/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Risk factors for incarceration have been well described among adult drug using populations; however, less is known about incarceration among at-risk youth. This study examines the prevalence and correlates of incarceration among street-involved youth in a Canadian setting. METHODS From September 2005 to May 2012, data were collected from the At-Risk Youth Study, a prospective cohort of street-involved youth aged 14-26 who use illicit drugs. Generalized estimating equation (GEE) logistic regression was used to identify factors associated with recent incarceration defined as incarceration in the previous six months. RESULTS Among 1019 participants, 362 (36%) reported having been recently incarcerated during the study period. In multivariate GEE analysis, homelessness (adjusted odds ratio [AOR]=1.60), daily crystal methamphetamine use (AOR=1.56), public injecting (AOR=1.33), drug dealing (AOR=1.48) and being a victim of violence (AOR=1.68) were independently associated with incarceration (all p<0.05). Conversely, female gender (AOR=0.48), lesbian, gay, bisexual, transgender or two-spirited (LGBTT) identification (AOR=0.47) and increasing age of first hard drug use (AOR=0.96) were negatively associated with incarceration (all p<0.05). CONCLUSION Incarceration was common among our study sample. Youth who were homeless, used crystal methamphetamine, and engaged in risky behaviors including public injection and drug dealing were significantly more likely to have been recently incarcerated. Structural interventions including expanding addiction treatment and supportive housing for at-risk youth may help reduce criminal justice involvement among this population and associated health, social and fiscal costs.
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Affiliation(s)
- John D Omura
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6; School of Population and Public Health, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC, Canada V6T 1Z3
| | - Evan Wood
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6; Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6
| | - Paul Nguyen
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6
| | - Thomas Kerr
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6; Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6
| | - Kora DeBeck
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6; School of Public Policy, Simon Fraser University, SFU Harbour Centre, 515 West Hastings Street, Suite 3271, Vancouver, BC, Canada V6B 5K3.
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Uhlmann S, Debeck K, Simo A, Kerr T, Montaner JSG, Wood E. Crystal methamphetamine initiation among street-involved youth. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2013; 40:31-6. [PMID: 24191637 DOI: 10.3109/00952990.2013.836531] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Although many settings have recently documented a substantial increase in the use of methamphetamine-type stimulants, recent reviews have underscored the dearth of prospective studies that have examined risk factors associated with the initiation of crystal methamphetamine use. OBJECTIVES Our objectives were to examine rates and risk factors for the initiation of crystal methamphetamine use in a cohort of street-involved youth. METHODS Street-involved youth in Vancouver, Canada, were enrolled in a prospective cohort known as the At-Risk Youth Study (ARYS). A total of 205 crystal methamphetamine-naïve participants were assessed semi-annually and Cox regression analyses were used to identify factors independently associated with the initiation of crystal methamphetamine use. RESULTS Among 205 youth prospectively followed from 2005 to 2012, the incidence density of crystal methamphetamine initiation was 12.2 per 100 person years. In Cox regression analyses, initiation of crystal methamphetamine use was independently associated with previous crack cocaine use (adjusted relative hazard [ARH] = 2.24 [95% CI: 1.20-4.20]) and recent drug dealing (ARH = 1.98 [95% CI: 1.05-3.71]). Those initiating methamphetamine were also more likely to report a recent nonfatal overdose (ARH = 3.63 [95% CI: 1.65-7.98]) and to be male (ARH = 2.12 [95% CI: 1.06-4.25]). CONCLUSIONS We identified high rates of crystal methamphetamine initiation among this population. Males those involved in the drug trade, and those who used crack cocaine were more likely to initiate crystal methamphetamine use. Evidence-based strategies to prevent and treat crystal methamphetamine use are urgently needed.
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Affiliation(s)
- Sasha Uhlmann
- British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver, BC , Canada
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The relationship between alcohol use and injecting drug use: impacts on health, crime and wellbeing. Drug Alcohol Depend 2013; 128:111-5. [PMID: 22989499 DOI: 10.1016/j.drugalcdep.2012.08.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 07/18/2012] [Accepted: 08/14/2012] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVES People who inject drugs (PWID) are at risk of a variety of adverse outcomes. Previous research suggests that alcohol, when consumed with opioids, is a risk factor for overdose, but there has been less investigation of the effects of alcohol consumption on other health, criminogenic or life satisfaction outcomes. In this paper we explore the effects of alcohol on outcomes for PWID across a variety of life domains. METHODS Baseline data were drawn from the Melbourne Injecting Drug User cohort study, which is a cohort of 688 PWID. Drinking scores were generated from the AUDIT-C (0, 1-7, 8+) and associations between them and health (recent heroin overdose, Emergency Department use), criminogenic (violent and nonviolent crime) and life satisfaction (personal wellbeing) outcomes were examined using logistic and linear regression. RESULTS While around 36% of the cohort reported past-month abstinence from alcohol, 44% scored between 1 and 7 and 20% above 7 on the AUDIT-C. A score above 7 was associated with perpetration of violent crime and lower personal wellbeing ratings than a score of 0, after adjusting for potential confounders. There was no association between alcohol and other outcomes examined, after adjustment for confounders. CONCLUSION Cohort participants who drink heavily were more likely to report engaging in violent crime and poorer life satisfaction. The relationship between alcohol and the offending behaviours of the cohort was consistent with the effects of alcohol on violent offending in the broader community.
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Nyamathi A, Hudson A, Greengold B, Leake B. Characteristics of homeless youth who use cocaine and methamphetamine. Am J Addict 2012; 21:243-9. [PMID: 22494226 DOI: 10.1111/j.1521-0391.2012.00233.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
This cross-sectional hepatitis health promotion study (N = 156) was designed to identify correlates of cocaine and methamphetamine use among young, homeless persons living in Los Angeles County. Structured questionnaires were administered at baseline to assess sociodemographic characteristics, drug history, and social support. Unadjusted analysis showed that older age, having a history of incarceration, injection drug use (IDU), 10 or more sexual partners, and sex for money were associated with both cocaine and methamphetamine use. Logistic regression results showed that injection drug users had over seven times greater odds of using each stimulant compared with nonusers of injection drugs; those reporting at least 10 sexual partners and alcohol use in the past 6 months were more likely to use cocaine than their respective counterparts. African Americans were also less likely than Whites to report cocaine use. Understanding of these relationships can guide interventions targeting the multiple challenges faced by this population.
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Affiliation(s)
- Adeline Nyamathi
- School of Nursing, University of California-Los Angeles, CA 90095, USA.
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Hayashi K, Wood E, Suwannawong P, Kaplan K, Qi J, Kerr T. Methamphetamine injection and syringe sharing among a community-recruited sample of injection drug users in Bangkok, Thailand. Drug Alcohol Depend 2011; 115:145-9. [PMID: 21130584 DOI: 10.1016/j.drugalcdep.2010.10.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 10/20/2010] [Accepted: 10/21/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND The recent growth in methamphetamine use internationally has raised concerns about the relationship between methamphetamine use and HIV infection. However, the risks associated with methamphetamine injection have not been fully described, particularly outside of Western countries. Therefore, we sought to examine the relationship between methamphetamine injection and syringe sharing among injection drug users (IDU) in Bangkok, Thailand. METHODS Using bivariate statistics and multivariate logistic regression, we examined the prevalence of methamphetamine injection and the relationship between more than weekly methamphetamine injection and syringe sharing among a community-recruited sample of IDU participating in the Mitsampan Community Research Project in Bangkok. RESULTS During June and July 2009, 311 IDU participated in this study, including 91 (29.3%) women. In total, 114 (36.7%) participants reported having injected methamphetamine ("yaba") twice or more per week in the past six months. In multivariate analyses, after adjustment for potential social, demographic and behavioral confounders, syringe sharing remained independently associated with injecting methamphetamine more than once per week (adjusted odds ratio=2.86, 95% confidence interval: 1.59-5.15). CONCLUSIONS Over one-third of a community-recruited sample of Thai IDU reported more than weekly injection of methamphetamine, and methamphetamine injection was independently associated with syringe sharing. Essential HIV prevention services targeting IDU, such as syringe exchange and evidence-based addiction treatment, should be included in interventional efforts to address methamphetamine use in Thailand.
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Affiliation(s)
- Kanna Hayashi
- Urban Health Research Initiative, British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6 Canada
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Abstract
PURPOSE OF REVIEW The existence of people with mental disorders in prisons is a reality found worldwide. The purpose of this article is not only to review the publications on this subject in 2009 but also to stimulate discussions that could contribute to its further scientific study. RECENT FINDINGS Most studies published in 2009 related to drug use among inmates and its consequences made it clear that this kind of disorder has a closer relationship with the crime than with mental illness. SUMMARY The existence of the mentally ill in prisons is a complex issue and the studies attempt to analyze aspects such as the type of disorder, sex of criminals, the opposition between incarceration and treatment, policy, harm reduction and stigma. A further study on the variables raised in this work is required, as well as examining others, to the extent that they are relevant to the various socio-economic and cultural realities.
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