A general causal model to guide alcohol, tobacco, and illicit drug prevention: assessing the research evidence

The Development of Proud & Empowered: An Intervention for Promoting LGBTQ Adolescent Mental Health

Sexual and gender minority adolescents (SGMA) experience higher rates of internalizing psychopathology, including depression, anxiety, self-harm, and posttraumatic stress disorder. The primary explanation for these mental health disparities is minority stress theory, which suggests that discrimination, violence, and victimization are key drivers of chronic minority stress and place SGMA at higher risk of mental health concerns. To help address these concerns, the authors undertook a nearly 8-year process of developing Proud & Empowered, a school-based intervention to help SGMA cope with minority stress experiences. This manuscript details the intervention development process, including: (a) identifying the mechanisms of change (Stage 0), (b) building the intervention (Stage 1A, Part 1), (c) acceptability testing and program revision (Stage 1A, Part 2), (d) feasibility and pilot testing (Stage 1B, Part 1), (e) modification of the intervention to improve implementability (Stage 1B, Part 2), and (f) the final intervention.

Reducing Underage Drinking Through Visible Home Visits by Law Enforcement: An Efficacy Case Study Over 29 Months

This paper describes the development and impact of an underage drinking reduction program designed and implemented by a South Carolina county sheriff's office with assistance from the county coalition. In December 2017, high school surveys identified family and friends as the alcohol source 82.2% of the time. In Summer 2018, sheriff deputies began visiting with almost all high school seniors, i.e., 1,352 high school senior visits.Deputies reminded parents to not provide alcohol to anyone under 21 years old. School surveys were conducted pre-program (December 2017), during (April 2018 and September 2018) and post-program (April 2020). Comparing the pre-effort results with post surveys found a 22.8% decline in 30-day drinking (p=.01) and a 23.5% decrease in binge drinking (p=.07). As described by Holder et al., the results provide the foundation for replication under controlled research conditions.

Applying a complex systems perspective to alcohol consumption and the prevention of alcohol-related harms in the 21st century: a scoping review

BACKGROUND AND AIMS

A complex systems perspective has been advocated to explore multi-faceted factors influencing public health issues, including alcohol consumption and associated harms. This scoping review aimed to identify studies that applied a complex systems perspective to alcohol consumption and the prevention of alcohol-related harms in order to summarize their characteristics and identify evidence gaps.

METHODS

Studies published between January 2000 and September 2020 in English were located by searching for terms synonymous with 'complex systems' and 'alcohol' in the Scopus, MEDLINE, Web of Science and Embase databases, and through handsearching and reference screening of included studies. Data were extracted on each study's aim, country, population, alcohol topic, system levels, funding, theory, methods, data sources, time-frames, system modifications and type of findings produced.

RESULTS

Eighty-seven individual studies and three systematic reviews were identified, the majority of which were conducted in the United States or Australia in the general population, university students or adolescents. Studies explored types and patterns of consumption behaviour and the local environments in which alcohol is consumed. Most studies focused on individual and local interactions and influences, with fewer examples exploring the relationships between these and regional, national and international subsystems. The body of literature is methodologically diverse and includes theory-led approaches, dynamic simulation models and social network analyses. The systematic reviews focused on primary network studies.

CONCLUSIONS

The use of a complex systems perspective has provided a variety of ways of conceptualizing and analyzing alcohol use and harm prevention efforts, but its focus ultimately has remained on predominantly individual- and/or local-level systems. A complex systems perspective represents an opportunity to address this gap by also considering the vertical dimensions that constrain, shape and influence alcohol consumption and related harms, but the literature to date has not fully captured this potential.

Risk factors for alcohol, marijuana, and cigarette polysubstance use during adolescence and young adulthood: A 7-year longitudinal study of youth at high risk for smoking escalation

INTRODUCTION

Alcohol, nicotine, and marijuana are the three most widely used substances among adolescents and young adults, with co-use of multiple substances being common. Few longitudinal studies have examined risk factors of alcohol, marijuana, and nicotine poly-substance use. We examined frequency of alcohol, marijuana, and cigarette poly-substance use over time and how key risk factors contribute to this substance use during adolescence and young adulthood.

METHODS

Participants (N = 1263 9th and 10th graders) were oversampled for ever-smoking a cigarette at baseline from 16 Chicago-area high schools between 2004 and 2006. Many participants progressed to heavier cigarette use, as well as alcohol and marijuana use over time. Participants completed questionnaires assessing substance use and psychosocial factors at baseline, 6-, 15-, 24-, 33-months, and 5-, 6-, and 7-years.

RESULTS

Longitudinal multi-level models demonstrated that at baseline and over time, more depression symptoms, more anxiety symptoms, negative mood regulation expectancies, and lower grade point average (GPA) were each associated with more poly-substance use over time. In addition, there were a number of interaction effects of gender (e.g., depression was related to substance use in males) and developmental stage moderated these relationships.

CONCLUSIONS

Depression, anxiety, negative mood regulation expectancies, and GPA all significantly influence both initial and longitudinal levels of substance use across adolescence and young adulthood. Our findings underscore the importance of identifying and treating youth with depression and anxiety symptoms, as well as providing resources early for those struggling in school in order to help with substance use prevention and intervention efforts.

Situating agent-based modelling in population health research

Today's most troublesome population health challenges are often driven by social and environmental determinants, which are difficult to model using traditional epidemiological methods. We agree with those who have argued for the wider adoption of agent-based modelling (ABM) in taking on these challenges. However, while ABM has been used occasionally in population health, we argue that for ABM to be most effective in the field it should be used as a means for answering questions normally inaccessible to the traditional epidemiological toolkit. In an effort to clearly illustrate the utility of ABM for population health research, and to clear up persistent misunderstandings regarding the method's conceptual underpinnings, we offer a detailed presentation of the core concepts of complex systems theory, and summarise why simulations are essential to the study of complex systems. We then examine the current state of the art in ABM for population health, and propose they are well-suited for the study of the 'wicked' problems in population health, and could make significant contributions to theory and intervention development in these areas.

Illicit Alcohol: Public Health Risk of Methanol Poisoning and Policy Mitigation Strategies

Illicit (unrecorded) alcohol is a critical global public health issue because it is produced without regulatory and market oversight with increased risk of safety, quality and adulteration issues. Undertaking iterative research to draw together academic, contemporary and historic evidence, this paper reviews one specific toxicological issue, methanol, in order to identify the policy mitigation strategies of interest. A typology of illicit alcohol products, including legal products, illegal products and surrogate products, is created. A policy landscape matrix is produced that synthesizes the drivers of illicit alcohol production, distribution, sale and consumption, policy measures and activity related signals in order to inform policy development. The matrix illustrates the interaction between capabilities, motivations and opportunities and factors such as access, culture, community norms and behavior, economic drivers and knowledge and information and gives insight into mitigation strategies against illicit alcohol sale and consumption, which may prove of value for policymakers in various parts of the world.

Changing course: supporting a shift to environmental strategies in a state prevention system

Background

This study examines how the North Carolina state prevention system responded to a policy shift from individual-level prevention strategies to environmental strategies from the perspective of the organizations implementing the policy shift.

Methods

We use two data sources. First, we conducted interviews to collect qualitative data from key informants. Second, we used prevention provider agency expenditure data from the year the shift was announced and the following year.

Results

The interviews allowed us to identify effective features of policy change implementation in complex systems, such as the need for clear communication and guidance about the policy changes. Our interview and expenditure analyses also underscore variation in the level of guidance and oversight provided by implementing agencies to prevention providers.

Conclusions

Our analyses suggest that more active monitoring and oversight may have facilitated more consistent implementation of the policy shift toward greater use of environmental prevention strategies.

Non-medical use of benzodiazepines and GABA analogues in Europe

AIMS

We investigated the prevalence of non-medical use (NMU) of benzodiazepines and GABA analogues in Europe.

METHODS

Data were collected using the online Non-Medical Use of Prescription Drugs (NMURx) survey from France, Germany, Italy, Spain and the UK.

RESULTS

The study included 55 223 eligible surveys which, after post-stratification weights were applied, represented approximately 260 million European adults. Lifetime NMU of benzodiazepines was highest in Spain (6.5%, 95% CI: 6.0-7.0) and lowest in Germany (1.7%, 1.5-2.0). Lifetime NMU of GABA analogues was highest in Germany (5.4%, 5.0-5.7) and lowest in France (2.2%, 1.9-2.5) and the UK (2.2%, 1.9-2.6) While no notable difference was observed for France or the UK, there was a higher prevalence of last 12-month NMU of benzodiazepines compared to GABA analogues in Italy (2.4 times higher) and Spain (3.0 times higher) and a higher prevalence of NMU of GABA analogues compared to benzodiazepines in Germany (2.6 times higher).

CONCLUSION

This study shows that there is variation in NMU of benzodiazepines and GABA analogues among countries. Of particular interest is the high incidence of GABA analogue NMU in Germany and benzodiazepine NMU in Spain. Further research to identify factors and motivations responsible for the higher prevalence observed are essential to inform public health policies in those countries.

The Neighborhood-Level Association Between Alcohol Outlet Density and Female Criminal Victimization Rates

The aim of this study was to explore the neighborhood-level association between alcohol outlet density and non-intimate partner violent victimization rates among females. Violent offending and victimization are more prevalent for males than females, and most research on alcohol outlets and violence emphasizes males. Studies that do focus on alcohol outlets and female violent victimization tend to focus on intimate partner violence (IPV), yet non-IPV events are over three quarters of all female violent victimization incidents in the United States. We collected data on violent victimization rates, on- and off-premise alcohol outlet density, and neighborhood-level covariates of violence rates for Milwaukee block groups. We used spatially lagged regression models to test this association, to compare non-IPV results with those for overall female violent victimization rates, and to compare results for females with those for males. Our findings showed density of both on- and off-premise alcohol outlets was positively associated with non-IPV female violent victimization rates, which is an important finding given lack of research on this topic. We also found results for females (both overall and non-IPV violent victimization) were generally the same as for males, but the effect of off-premise outlets on non-IPV female violent victimization rates was weaker than the same association for males. Our findings have clear policy implications for local jurisdictions. Alcohol outlet density is important for both female and male violent victimization. Limiting the licensing of alcohol-selling establishments, especially those that engage in irresponsible retail practices, may be a suitable approach to address violent victimization.

Local Health Department Activities to Reduce Emergency Department Visits for Substance Use Disorders

The Affordable Care Act (ACA) provides financial incentives to prevent substance use disorders (SUDs). Local health departments (LHDs) can receive funds to establish care teams that partner with primary care providers and health systems. This study estimates the potential effect of LHDs on emergency visits for SUDs, using linked data sets from the Healthcare Cost and Utilization Project Emergency Department (ED) sample for the State of Maryland-2012, the National Association of County and City Health Officials Profiles Survey 2013, and Area Health Resource File 2013 to estimate potential effect of LHDs' provision of SUD preventive care and SUD-related policy implementation. Local health department involvement in SUD-related policy during the past 2 years and provision of preventive care for behavioral health in the past year significantly reduced the probability of having a SUD-related ED visit by 11% and 6%, respectively, after controlling for individual characteristics (odds ratio [OR] = 0.89, p < .001; OR = 0.93, p < .001). After adjusting for the individual and contextual factors, LHD involvement in policy was still associated with 14% reduction in SUD-related ED visits (OR = 0.86, p < .001). Results offer insights on the extent to which the LHD activities can possibly affect SUD-related ED visits and provide a foundation for future work to identify effective LHD interventions.

Person-Environment Fit, Substance Use Attitudes, and Early Adolescent Substance Use

BACKGROUND

Adolescent substance use is a national health concern. While the literature is clear on the prevalence of substance use during the adolescent developmental period, a dearth of literature is available on the developmental contexts, particularly the influence of school factors, in which substance use occurs.

OBJECTIVES

This study examined the intermediary role of substance use attitudes on the relationship between school racial composition and alcohol and marijuana use in a sample of sixth to eighth graders.

METHODS

The sample consisted of 4228 middle school students (89% White; 53% female) in the Midwest. A moderated mediation analysis was conducted on the relationship between school racial composition, substance use attitudes, and substance use, with race as the moderator.

RESULTS

Results indicated a significant relationship between the percentage of White or Black students in a school and alcohol or marijuana use and that this relationship was mediated by substance use attitudes. These relationships did not differ significantly by student race. Conclusions/Importance: Preliminary findings indicate the importance of considering school racial composition as a systems level risk or promotive factor for attitudes toward substance use as well as substance use outcomes.

Moving alcohol prevention research forward-Part I: introducing a complex systems paradigm

BACKGROUND AND AIMS

The drinking environment is a complex system consisting of a number of heterogeneous, evolving and interacting components, which exhibit circular causality and emergent properties. These characteristics reduce the efficacy of commonly used research approaches, which typically do not account for the underlying dynamic complexity of alcohol consumption and the interdependent nature of diverse factors influencing misuse over time. We use alcohol misuse among college students in the United States as an example for framing our argument for a complex systems paradigm.

METHODS

A complex systems paradigm, grounded in socio-ecological and complex systems theories and computational modeling and simulation, is introduced. Theoretical, conceptual, methodological and analytical underpinnings of this paradigm are described in the context of college drinking prevention research.

RESULTS

The proposed complex systems paradigm can transcend limitations of traditional approaches, thereby fostering new directions in alcohol prevention research. By conceptualizing student alcohol misuse as a complex adaptive system, computational modeling and simulation methodologies and analytical techniques can be used. Moreover, use of participatory model-building approaches to generate simulation models can further increase stakeholder buy-in, understanding and policymaking.

CONCLUSIONS

A complex systems paradigm for research into alcohol misuse can provide a holistic understanding of the underlying drinking environment and its long-term trajectory, which can elucidate high-leverage preventive interventions.

State and National Contexts in Evaluating Cannabis Laws: A Case Study of Washington State

As of January 2016, 23 U.S. states and the District of Columbia have legalized medical or nonmedical cannabis, with more likely to follow. This dynamic policy context represents a substantial challenge for policy evaluation. Part I of this article provides a summary of state-level cannabis policy components across states and federal action regarding state-level policies. Part II presents a detailed history of cannabis policies in Washington State from 1998 to 2015 and analyzes the potential impacts of the policy changes on cannabis supply and demand. As an early adopter of both medical and nonmedical cannabis policies, Washington State provides an excellent example of the key elements to be considered in evaluating the relationship between policy changes and cannabis use. We highlight the importance of the interplay of federal enforcement priorities and previously adopted state-level cannabis regimes in interpreting the potential impacts of new cannabis policies.

Rating the effectiveness of local tobacco policies for reducing youth smoking

Important questions remain regarding the effectiveness of local tobacco policies for preventing and reducing youth tobacco use and the relative importance of these policies. The aims of this paper are to: (1) compare policy effectiveness ratings provided by researchers and tobacco prevention specialists for individual local tobacco policies, and (2) develop and describe a systematic approach to score communities for locally-implemented tobacco policies. We reviewed municipal codes of 50 California communities to identify local tobacco regulations in five sub-domains. We then developed an instrument to rate the effectiveness of these policies and administered it to an expert panel of 40 tobacco researchers and specialists. We compared mean policy effectiveness ratings obtained from researchers and prevention specialists and used it to score the 50 communities. High inter-rater reliabilities obtained for each sub-domain indicated substantial agreement among the raters about relative policy effectiveness. Results showed that, although researchers and prevention specialists differed on the mean levels of policy ratings, their relative rank ordering of the effectiveness of policy sub-domains were very similar. While both researchers and prevention specialists viewed local outdoor clean air policies as least effective in preventing and reducing youth cigarette smoking, they rated tobacco sales policies and advertising and promotion as more effective than the other policies. Moreover, we found high correlations between community scores generated from researchers' and prevention specialists' ratings. This approach can be used to inform research on local policies and prevention efforts and help bridge the gap between research and practice.

Substance abuse screening and brief intervention for adolescents in primary care

Adolescent substance use is common and is associated with serious mental, physical, and social risks, warranting systematic screening in the primary care setting. It is important for clinicians to become familiar with Screening, Brief Intervention, and Referral to Treatment (SBIRT), including administration of validated screening tools to identify level of risk associated with substance use and application of appropriate brief interventions. Positive reinforcement and brief advice is indicated for those adolescents with no or minimal risk for a substance use disorder. Providing a brief intervention using motivational interviewing strategies with subsequent close clinical follow-up is warranted when an adolescent meets criteria for a mild to moderate substance use disorder. Referral to treatment is recommended in cases of severe substance use. Immediate action, including breaking confidentiality, may be necessary when an adolescent's behavior raises acute safety concerns. Making time to interview adolescents alone is essential. It is also important to review the limitations of confidentiality with patients and parents/guardians and offer them strategies to discuss sensitive issues with their adolescents. Available resources for adolescents, parents/guardians, and clinicians regarding the risks of adolescent substance use and evidence-based treatment options can be used to support implementation of SBIRT in adolescent primary care.

Using community surveys to inform the planning and implementation of environmental change strategies: participatory research in 12 Washington communities

A number of studies have demonstrated the efficacy of environmental change strategies (ECS) in effecting community-level change on attitudes and behaviors related to underage drinking (Treno and Lee in Alcohol Res Health 26:35-40, 2002; Birckmayer et al. in J Drug Educ 34(2):121-153, 2004). Primary data collection to inform the design of these strategies, however, can be resource intensive and exceed the capacity of community stakeholders. This study describes the participatory planning and implementation of community-level surveys in 12 diverse communities in the state of Washington. These surveys were conducted through collaborations among community volunteers and evaluation experts assigned to each community. The surveys were driven by communities' prevention planning needs and interests; constructed from collections of existing, field-tested items and scales; implemented by community members; analyzed by evaluation staff; and used in the design of ECS by community-level leaders and prevention practitioners. The communities varied in the content of their surveys, in their sampling approaches and in their data collection methods. Although these surveys were not conducted using traditional rigorous population survey methodology, they were done within limited resources, and the participatory nature of these activities strengthened the communities' commitment to using their results in the planning of their environmental change strategies.

The interactive systems framework applied to the strategic prevention framework: the Rhode Island experience

The Interactive Systems Framework for Dissemination and Implementation (ISF) was introduced as a heuristic systems level model to help bridge the gap between research and practice (Wandersman et al., in Am J Commun Psychol 41:171-181, 2008). This model describes three interacting systems with distinct functions that (1) distill knowledge to develop innovations; (2) provide supportive training and technical assistance for dissemination to; (3) a prevention delivery system responsible for implementation in the field. The Strategic Prevention Framework (SPF) is a major prevention innovation launched by the Center for Substance Abuse Prevention (CSAP) of the Substance Abuse and Mental Health Services Administration (SAMHSA). The SPF offers a structured, sequential, data-driven approach that explicitly targets environmental conditions in the community and aims for change in substance use and problems at the population level. This paper describes how the ISF was applied to the challenges of implementing the SPF in 14 Rhode Island communities, with a focus on the development of a new Training and Technical Assistance Resources Center to support SPF efforts. More specifically, we (1) describe each of the three ISF interacting systems as they evolved in Rhode Island; (2) articulate the lines of communication between the three systems; and (3) examine selected evaluation data to understand relationships between training and technical assistance and SPF implementation and outcomes.

A community prevention model to prevent children from inhaling and ingesting harmful legal products

Children's misuse of harmful legal products (HLPs), including inhaling or ingesting everyday household products, prescription drugs, and over-the-counter drugs, constitutes a serious health problem for American society. This article presents a community prevention model (CPM) focusing on this problem among pre and early adolescents. The model, consisting of a community mobilization strategy and environmental strategies targeting homes, schools, and retail outlets, is designed to increase community readiness and reduce the availability of HLPs, which is hypothesized to reduce HLPs use among children. The CPM is being tested in Alaskan rural communities as part of an inprogress eight-year National Institute on Drug Abuse randomized-controlled trial. This paper presents the CPM conceptual framework, describes the model, and highlights community participation, challenges, and lessons learned from implementation of the model over a 21-month period.

Substance Abuse Treatment as Part of a Total System of Community Response

Treatment of substance abuse in many communities throughout the world is often separated from other social and health responses to alcohol and other drug harms. Current responses exist like silos within the community. In addition, there are population-level policy approaches concerning the distribution and sales of alcohol and the restrictions on and enforcement of illegal drugs which also exist only loosely connected to treatment (or prevention for that matter). A systems approach to substance abuse and related problems is described in which evaluation addresses both clinical patient needs as well as overall performance demonstration. Effectiveness can be measured both by population level reductions in use and associated problems, a second level of accountability, i.e., documented reductions in problems of at risk groups or clients whose drinking or drug use patterns place them at risk for future problems, and a third level of response for individuals with clearly identified substance-related problems, which requires intervention at the person level (typically called treatment). Thus within such a comprehensive system, treatment and prevention would lose their separate identities and would be employed according to local needs and the potential to achieve desired effects where the overall system is required to select the mix of strategies which maximizes effectiveness at each level.

One-year follow-up evaluation of Project Towards No Drug Abuse (TND-4)

OBJECTIVES

This paper describes the one-year outcomes of the fourth experimental trial of Project Towards No Drug Abuse. Two theoretical content components of the program were examined to increase our understanding of the relative contribution of each to the effectiveness of the program.

METHODS

High schools in Southern California (n=18) were randomly assigned to one of three conditions: cognitive perception information curriculum, cognitive perception information+behavioral skills curriculum, or standard care (control). The curricula were delivered to high school students (n=2734) by project health educators and regular classroom teachers. Program effectiveness was assessed with both dichotomous and continuous measures of 30-day substance use at baseline and one-year follow-up.

RESULTS

Across all program schools, the two different curricula failed to significantly reduce dichotomous measures of substance use (cigarette, alcohol, marijuana, and hard drugs) at one-year follow-up. Both curricula exerted an effect only on the continuous measure of hard drug use, indicating a 42% (p=0.02) reduction in the number of times hard drugs were used in the last 30 days in the program groups relative to the control.

CONCLUSIONS

The lack of main effects of the program on dichotomous outcomes was contrary to previous studies. An effect on an ordinal count measure of hard drug use among both intervention conditions replicates previous work and suggests that this program effect may have been due to changes in cognitive misperception of drug use rather than behavioral skill.

Alcohol and other drug related deaths among young people in CIS countries: proximal and distal causes and implications for policy

BACKGROUND

Although the mortality crisis that followed the break-up of the Soviet Union in 1992 has been well researched, most attention has been paid to mortality among middle-aged men. There has been relatively little analysis of death rates among young people, many of which appear related to alcohol and other drug (AOD) use. Death rates ranged from exceedingly high in some countries (e.g. Russia) to very low in others (e.g. Armenia). This divergence among Commonwealth of Independent States (CIS) countries increased considerably over the 1990s. What caused this divergence in youth deaths and what policy response is needed?

METHOD

An ecological study of country-level data was used to explore the relationships between risk factors, AOD use and youth deaths across time and between countries. Qualitative research literature was used to supplement the statistical data.

RESULTS

AOD abuse risk factors were divided into 'proximal causes' (e.g. AOD availability) and 'distal causes' (e.g. social cohesion, welfare, culture). Proximal risk factors appeared to explain some of the AOD use and death data, but they did not explain all of the country differences. Analysis of distal risk factors suggested that family and community strength are important factors in the trends in AOD abuse and youth mortality.

CONCLUSIONS

The policy response to AOD abuse and mortality among young people needs to attend to both proximal and distal factors. An exclusive focus on proximal risk factors is unlikely to provide a satisfactory solution. Rather, the social determinants of child and youth development need to be considered. More research is needed on the relationship between AOD abuse and youth mortality, and on the influence of family and community strength on both these outcomes in the region. Useful lessons may be learned from countries such as Armenia, where both AOD abuse and youth mortality have remained low.

Alcohol and malt liquor availability and promotion and homicide in inner cities

We investigated the role of the alcohol environment in explaining disparities in homicide rates among minorities in 10 cities in the United States using 2003 data from the Malt Liquor and Homicide study. We hypothesized that (a) higher concentrations of African Americans would be associated with higher homicide rates, as well as higher alcohol and malt liquor availability and promotion, and (b) the relationship between neighborhood racial/ethnic concentration and homicide would be attenuated by the greater alcohol and malt liquor availability and promotion in African American neighborhoods. Hypotheses were tested using separate Poisson, linear, and logistic regression models that corrected for spatial autocorrelation. Census block groups served as the unit of analysis (n = 450). We found that higher concentrations of African Americans were associated with higher homicide rates as well as greater alcohol availability, especially malt liquor availability. The promotion of malt liquor on storefronts was also significantly greater in African American than in other neighborhoods. However, none of the measures representing alcohol or malt liquor availability and promotion variables changed the effect of neighborhood racial/ethnic concentration on homicide. Limitations and implications of our findings are discussed.

Prevention of methamphetamine abuse: can existing evidence inform community prevention?

Little research exists on effective strategies to prevent methamphetamine production, distribution, sales, use, and harm. As a result, prevention practitioners (especially at the local level) have little guidance in selecting potentially effective strategies. This article presents a general causal model of methamphetamine use and harms that reflects the available findings from either research specific to methamphetamine or from alcohol and other illegal drugs, and suggests prevention approaches and strategies that communities might use based upon research evidence and experience. Community methamphetamine prevention can use the public health and safety perspective applied to other substance abuse prevention. Analyses of the complex system of intermediate variables that interact to affect methamphetamine use and harms suggest that multiple reinforcing prevention interventions may have the greatest potential effectiveness.

The effect of restricting opening hours on alcohol-related violence

OBJECTIVE

We investigated whether limiting the hours of alcoholic beverage sales in bars had an effect on homicides and violence against women in the Brazilian city of Diadema. The policy to restrict alcohol sales was introduced in July 2002 and prohibited on-premises alcohol sales after 11 pm.

METHODS

We analyzed data on homicides (1995 to 2005) and violence against women (2000 to 2005) from the Diadema (population 360,000) police archives using log-linear regression analyses.

RESULTS

The new restriction on drinking hours led to a decrease of almost 9 murders a month. Assaults against women also decreased, but this effect was not significant in models in which we controlled for underlying trends.

CONCLUSIONS

Introducing restrictions on opening hours resulted in a significant decrease in murders, which confirmed what we know from the literature: restricting access to alcohol can reduce alcohol-related problems. Our results give no support to the converse view, that increasing availability will somehow reduce problems.

Políticas públicas relacionadas às bebidas alcoólicas

O artigo apresenta uma revisão sobre estudos dos problemas relacionados ao consumo de bebidas alcoólicas e as estratégias para minimizá-los, abordando recentes evidências científicas. Para tanto, realizou-se pesquisa na literatura científica sobre políticas públicas relacionadas ao álcool, por meio das buscas nas bases MEDLINE, SciELO e LILACS. Políticas que visam a diminuir o consumo de álcool têm sido implementadas pelos países para minimizar os efeitos dessa substância na saúde e segurança da população, mas só recentemente tais estratégias e intervenções foram avaliadas cientificamente. Discutem-se as políticas de melhor custo-efetividade, capazes de promover redução dos danos e dos custos socioeconômicos relacionados ao uso de bebidas alcoólicas, por meio de estratégias conducentes à mudança de comportamentos e contextos de consumo prejudiciais aplicáveis em diferentes comunidades.

Assessing environmental prevention strategies for reducing the prevalence and associated harms of methamphetamine use

Developed primarily in clandestine laboratories, methamphetamine is a highly addictive synthetic drug whose physical effects include hyperactivity, euphoria, tremors, and a sense of increased energy. While the accuracy of recent accounts suggesting a methamphetamine epidemic in the United States is unclear, these reports have nevertheless translated into significant funding allowances by the federal government. This increased funding suggests that the opportunity is ripe for the development of a scientific, environmentally-based model for methamphetamine prevention.

A community prevention intervention to reduce youth from inhaling and ingesting harmful legal products

Youth use of harmful legal products, including inhaling or ingesting everyday household products, prescription drugs, and over-the-counter drugs, constitutes a growing health problem for American society. As such, a single targeted approach to preventing such a drug problem in a community is unlikely to be sufficient to reduce use and abuse at the youth population level. Therefore, the primary focus of this article is on an innovative, comprehensive, community-based prevention intervention. The intervention described here is based upon prior research that has a potential of preventing youth use of alcohol and other legal products. It builds upon three evidence-based prevention interventions from the substance abuse field: community mobilization, environmental strategies, and school-based prevention education intervention. The results of a feasibility project are presented and the description of a planned efficacy trial is discussed.

An evaluation of the fidelity of implementation of a school-based drug abuse prevention program: project toward no drug abuse (TND)

This article provides an implementation fidelity evaluation of the fourth experimental trial of Project Towards No Drug Abuse (TND). Two theoretical content components of the curriculum were examined to increase our understanding of the active ingredients of successful drug abuse prevention programs. A total of 18 senior high schools were randomly assigned by block to receive one of three conditions: cognitive perception information curriculum, cognitive perception information + behavioral skills curriculum, or standard care (control). These curricula were delivered to both regular and continuation high schools students (n=2331) by trained project health educators and regular classroom teachers. Across all program schools, the two different curricula were implemented as intended, were received favorably by students, and showed significant improvements in knowledge specific to the theoretical content being delivered. This pattern of results suggests that the experimental manipulations worked as intended, and thus, permit the attribution of future behavioral outcome differences between conditions to differences in content of Project TND material provided rather than to differences in the fidelity of delivery. Further, our findings indicate that Project TND can be implemented effectively with low and high risk youth in a general environment as well as with high risk youth in a more specialized environment.