Effectiveness of a selective intervention program targeting personality risk factors for alcohol misuse among young adolescents: results of a cluster randomized controlled trial

The potential of intervention-based community development programs in reducing multiple health risk behaviors among adolescent: A scoping review of the latest RCTs

Background: Adolescents are more likely than adults to engage in risky health behaviors such as smoking, drinking, and sexual activity. Community development plays a role in reducing adolescents’ personal, cognitive, and social skill deficits. A review of the effectiveness of community-development interventions is required to advance our understanding of how the intervention reduce health risk behaviors. This study analyze type and effectiveness of adolescents’ community development programs reduce multiple health risk behaviors among adolescents. Methods: This scoping review used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR). With a date range of 2015–2021, searches were conducted in PubMed, EBSCO, and ProQuest using keywords (((Life skill education) OR (community development)) AND ((health risk behavior) OR (risk behavior)) AND ((adolescent) OR (adolescence) OR (teenagers) OR (teens) OR (youth))). After title and abstract checking, full-text retrieval, and data extraction, data were synthesized based on the main objectives. The most important data were tabulated. Results: Most studies showed that community development–based interventions effectively reduce adolescents’ health risk behaviors, including risky sexual behaviors, drug and alcohol use. Interventions were carried out in schools, places of worship, and communities, involving adolescents, educational institutions, health professionals, religious leaders, and families. Conclusion: This review can assist community health nurses, policymakers, researchers, and teachers in developing and implementing effective community-development programs that ensure knowledge, attitudes, and skills transfer to reduce health risk behaviors.

Prevention of Alcohol Consumption Programs for Children and Youth: A Narrative and Critical Review of Recent Publications

Background

Youth substance use is a public health problem globally, where alcohol is one of the drugs most consumed by children, and youth prevention is the best intervention for drug abuse.

Objective

Review the latest evidence of alcohol use prevention programs in empirical research, oriented to all fields of action among children and youth.

Methods

A narrative and critical review was carried out within international databases (PsychInfo, Pubmed, Web of Science, and Scopus) in August 2021 and was limited to empirical studies that appeared in the last five years (2017-2021). A flow diagram was used according to the PRISMA statements. Empirical research articles in English with RCTs and quasi-experimental design that included alcohol, children, and young people up to 19 years of age (universal, selective, or indicated programs) were included. The authors examined the results and conceptual frameworks of the Prevention programs by fields of action.

Results

Twenty-two articles were found from four fields of action: school (16), family (2), community (2), and web-based (2), representing 16 alcohol prevention programs. School-based alcohol prevention programs are clinically relevant [Theory of Planned Behavior, Refuse, Remove, Reasons, Preventure, The GOOD Life, Mantente REAL, Motivational Interviewing (BIMI), Primavera, Fresh Start, Bridges/Puentes], they are effective in increasing attitudes and intentions toward alcohol prevention behavior, while decreasing social norms and acceptance of alcohol, reducing intoxication, and increasing perceptions with regards to the negative consequences of drinking.

Discussion

This narrative and critical review provides an updated synthesis of the evidence for prevention programs in the school, family, community, and web-based fields of action, where a more significant number of programs exist that are applied within schools and for which would have greater clinical relevance. However, the prevention programs utilized in the other fields of action require further investigation.

The efficacy of a targeted PREVENTION programme for addictive behaviour (PREVENTURE) among vulnerable ADOlescents in France - study procotol

Background

Alcohol use is a major public health challenge in France, where at the age of 17 half the young people report an episode of severe alcohol intoxication in the month preceding the survey. Numerous prevention programmes have a general objective, but in adolescence individual vulnerabilities towards addictions differ significantly with personality traits. Prevention targeting personality traits enables work on risk factors for addictive behaviours, and has shown genuine efficacy.

Among existing programmes, PREVENTURE has shown an effect on the reduction in alcohol consumption by targeting four personality traits: impulsivity, sensation-seeking, negative thoughts and anxiety. This programme has been tested on samples recruited in adolescent populations in school environments, identifying adolescents at risk, but it has not been tested on a more targeted recruitment of adolescents seen in consultation.

Methods

The main hypothesis of this study is that the targeted prevention programme PREVENTURE will have an impact on the prevalence of binge-drinking episodes. The secondary hypotheses explore other factors such as associated substance use, anxiety and depression, as well as the acceptability of the programme. This article presents the study protocol of “PREVADO” study.

We intend to assess the impact of the targeted intervention programme PREVENTURE on the prevalence of binge-drinking episodes among adolescents aged 14 to 17 years consulting in one of the participating centres or referred by a school doctor. The study will be prospective, randomised, controlled and open-label, and will comprise an intervention group and a control group.

The adolescents will then be followed and assessed 1, 3, 6 and 12 months after the intervention.

The study needs to include 700 subjects in order to reach 340 adolescents randomised, 170 in each group. It will concern 33 centres.

Discussion

This project could favour the targeting of addictive behaviours among vulnerable adolescents, and its application on a larger scale could be envisaged.

Trial registration

The Trial registration number is NCT04599270, and it was registered on the ClinicalTrials.gov public website.

The effectiveness of an indicated prevention programme for substance use in individuals with mild intellectual disabilities and borderline intellectual functioning: results of a quasi-experimental study

AIMS

To assess the effectiveness of Take it personal!, a prevention programme for individuals with mild intellectual disabilities and borderline intellectual functioning (MID-BIF) and substance use (SU). The prevention programme aims to reduce SU (alcohol, cannabis and illicit drugs) among experimental to problematic substance users.

DESIGN

A quasi-experimental design with two arms and a 3-month follow-up.

SETTING

Adolescents were recruited from 14 treatment centres in the Netherlands specialized in offering intra- and extramural care for people with MID-BIF and behavioural problems.

PARTICIPANTS

Data were collected from 66 individuals with MID-BIF assigned either to the intervention condition (n = 34) or to the control condition (n = 32).

INTERVENTIONS

Take it personal! was designed to target four personality traits: sensation-seeking, impulsive behaviour, anxiety sensitivity and negative thinking. For each of these profiles, interventions were developed that were structurally the same but contained different personality-specific materials, games and exercises. The control group received care as usual.

MEASUREMENTS

Primary outcomes at 3-month follow-up were frequency of SU, severity of SU and binge drinking.

RESULTS

Results showed intervention effects for SU frequency (F_{(1, 50.43)}  = 9.27, P = 0.004) and binge drinking (F_{(1, 48.02)}  = 8.63, P = 0.005), but not for severity of SU (F_{(1, 42.09)}  = 2.20, P = 0.145).

CONCLUSIONS

A prevention programme to reduce substance use among experimental to problematic users with mild intellectual disabilities and borderline intellectual functioning helped participants to decrease substance use frequency and binge drinking.

A trait-like propensity to experience internalizing symptoms is associated with problem alcohol involvement across adulthood, but not adolescence

There are stable between-person differences in an internalizing "trait," or the propensity to experience symptoms of internalizing disorders, such as social anxiety, generalized anxiety disorder, and depression. Trait internalizing may serve as a marker of heightened risk for problem alcohol outcomes (such as heavier drinking, binge drinking, or alcohol dependence). However, prior research on the association between internalizing symptoms and alcohol outcomes has been largely mixed in adolescence, with more consistent support for an association during adulthood. It may be that trait internalizing is only associated with problem alcohol outcomes in adulthood, after individuals have gained experience with alcohol. Some evidence suggested that these effects may be stronger for women than men. We used data from a community sample (n = 790) interviewed during adolescence (ages 14-16) and again at ages 21, 24, 27, 30, 33, and 39. Using generalized estimating equations, we tested the association between trait internalizing and alcohol outcomes during both adolescence and adulthood, and tested whether adult trait internalizing mediated the association between adolescent trait internalizing and adult alcohol outcomes. Trait internalizing in adulthood (but not adolescence) was associated with more frequent alcohol use, binge drinking and symptoms of alcohol use disorders, and mediated the effects of adolescent trait internalizing on alcohol outcomes. We observed no moderation by gender or change in these associations over time. Understanding the developmental pathways of trait internalizing may provide further insights into preventing the emergence of problem alcohol use behavior during adulthood. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Take it personal! Development and modelling study of an indicated prevention programme for substance use in adolescents and young adults with mild intellectual disabilities and borderline intellectual functioning

Background

This paper describes the theory and development of Take it personal! an indicated prevention programme aimed at reducing substance use in individuals with mild intellectual disabilities and borderline intellectual functioning.

Method

The process of the development of Take it personal! followed the steps of the Intervention Mapping protocol. Take it personal! is based on the theory that personality traits are an important construct to understand substance use (14–30 years old). A small modelling study was conducted with six adolescents to examine the feasibility, user‐friendliness and potential effectiveness of the intervention.

Results

The results showed that the intervention has good feasibility and user‐friendliness. Post‐intervention evaluation of frequency, binge drinking and problematic use indicated that use was lower than at pre‐intervention.

Conclusions

Take it Personal! can be a promising preventive intervention designed to reduce substance use in individuals in this target group. A larger scale study is needed to draw further conclusions.

Editorial: Selective Prevention in Anti-Bullying Programs: Could Targeting Personality Be the Answer?

Bullying is increasingly being viewed as a major public mental health problem; children and adolescents who are victims of bullying are at increased risk for negative psychological, social, and educational outcomes.¹ Children who bully others may also be at risk; as a group, they show higher levels of substance abuse, antisocial behavioral problems, and criminal offending when compared to children who do not bully others.^2,3 Yet bullying is tractable; systematic reviews provide evidence that complex, whole-school interventions are effective at reducing victimization and bullying.⁴ Although whole-school anti-bullying interventions have reported reductions in overall prevalence of bullying perpetration and victimization, it has been noted that some vulnerable children continue to be bullied. Of particular concern is the finding that such children may experience even greater levels of internalizing symptoms as overall rates of bullying and victimization decline-the so called "healthy context paradox." For example, in a study of 10- to 12-year-olds, children who were bullied suffered from lower self-esteem than their non-bullied peers and had even lower self-esteem in classrooms that had lower levels of peer-reported bullying victimization.⁵ Similarly, adolescents who reported higher rates of victimization experienced somatic problems more often when they were in classrooms with lower overall levels of self-reported victimization.⁶ Analyses from randomized controlled trial data from the Dutch implementation of the KiVa anti-bullying program similarly revealed that-despite the overall success of the intervention-those who remained or became victimized in intervention schools had more depressive symptoms and lower self-esteem after 1 year, compared to those who remained or became victimized in control schools.⁷ These early findings have led to calls for more targeted prevention programs designed specifically to support the most vulnerable children and adolescents.

Effectiveness of School-based Health Center Delivery of a Cognitive Skills Building Intervention in Young, Rural Adolescents: Potential Applications for Addiction and Mood

PURPOSE

Uniquely positioned, school nurses address two of the most critical adolescent health issues - addiction and mood. Cognitive behavioral therapy, the mainstay in management of adolescent mood disorders, demonstrates promise in the treatment and prevention of addictive behaviors. Quality decision-making may protect adolescents from substance abuse. Executive function, a neurocognitive aspect of decision-making, involves impulse control, future thinking, and behavioral regulation. Further, the continuum of addition implicates executive function, which makes executive function a viable target for prevention and treatment of substance use. This pilot study examined the effectiveness of a nurse-led cognitive skills training intervention, Creating Opportunities for Personal Empowerment, on executive function and mood in a novel population and setting.

DESIGN AND METHODS

The study sample included adolescents ranging in age from 12 to 15 years and enrolled in a rural school-based health center. Fifteen (n = 15) adolescents completed the seven-week cognitive skills building intervention led by a nurse practitioner. Researchers measured executive function, anxiety, and depression at: baseline, after the intervention series, and three-months later.

RESULTS

One domain of executive function - behavioral regulation - improved, as did anxiety. Depression showed short-term improvement. Metacognition did not change over time.

CONCLUSIONS

Preliminary results indicate that cognitive skills building delivered by school nurses may enhance aspects of executive function linked with addiction and coping, such as behavioral regulation. Further, this intervention may also improve mood in this population.

PRACTICE IMPLICATIONS

Delivery of cognitive skills training by school nurses could be an accessible, effective piece in addressing addiction and mood in young, rural adolescents.

The Links Between Social Anxiety Disorder, Insomnia Symptoms, and Alcohol Use Disorders: Findings From a Large Sample of Adolescents in the United States

Social anxiety disorder (SAD) is associated with increased risk of developing an alcohol use disorder (AUD). Most of the current literature has focused on the role of acute stress responding in this relation; however, both SAD and AUDs also are linked to insomnia symptoms (i.e., difficulty falling or staying asleep). As adolescence is a sensitive period for the onset of these disorders, the present study examined if insomnia symptoms might partially account for the SAD-AUD link in a large sample of adolescents. Data from the National Comorbidity Survey-Adolescent Supplement were examined. Participants (N = 10,140) completed interviews to assess past 12-month SAD and AUD diagnostic status as well as insomnia symptoms. Analyses tested whether insomnia symptoms accounted for a significant proportion of the SAD-AUD relation. Results indicated that insomnia symptoms were positively related to both SAD and AUD status, and the relation between SAD and AUD status was significantly reduced when insomnia symptoms were included in the model. Findings remained significant after controlling for the effects of age, gender, posttraumatic stress disorder, major depressive disorder, and other drug dependence status. Experimental examination and intensive longitudinal assessment of these relationships are needed before strong conclusions can be inferred about causality and temporal relationships. The current findings do indicate insomnia may be an important indirect and stigma-free treatment target to address in prevention and treatment efforts for SAD, AUDs, and their co-occurrence.

ADOLESCENTS´ PERCEPTION OF HARMS, BENEFITS AND INTENTION TO USE MARIJUANA WITHIN THE CONTEXT OF REGULATORY CHANGES IN BELIZE

ABSTRACT Objective: to evaluate the perception of harm and benefits from using marijuana in adolescents’, to determine lifetime, past year and past month prevalence of marijuana use; and to analyze the relationship between marijuana use and the perception of harm and benefits from using marijuana. Methods: multi-centric, quantitative cross sectional survey design method was utilized for this research. Data was collected using structured standardized approved questionnaire. A total of 273 students from three high schools in two cities of the country of Belize participated in the survey conducted in 2015. Results: lifetime prevalence of marijuana use of 41.4% (39.2% past year, 24.9% past 30 days), and average age of onset of 12 years. First time prevalence of marijuana use among students by sex indicated 53.1% male students used marijuana as compared to 46.9% female students with no significant (p>0.05) statistical difference seen between genders. Participants reported that their friends use marijuana (45.1%); while 68.1% of the marijuana users had some friends that use marijuana. 51% of the students surveyed stated that they would not use marijuana, even if it were legally available. The majority (70%) perceived no risk to using marijuana occasionally. Statistical analysis revealed that a high perception of benefits, a low risk perception and friends’ use of marijuana was associated with individual use as well as intention to use in a hypothetical context of regulatory changes. Conclusion: the Belizean school-aged adolescents are more than likely to smoke marijuana because of friends’ influence, low perception of risks and if marijuana is legally available and accessible to them.

A Review of Personality-Targeted Interventions for Prevention of Substance Misuse and Related Harm in Community Samples of Adolescents

Several school-based prevention programmes have been developed and used to prevent, delay, or reduce substance misuse, and related problems among community samples of adolescents. However, findings indicate that many of these interventions are associated with null, small, or mixed effects in reducing adolescent substance misuse, in particular for those mostly at risk of transitioning to substance use disorders. These findings highlight the need to shift the focus of substance use prevention efforts toward intervention strategies which directly target high-risk adolescents. The Preventure programme was designed to target four personality risk factors for substance misuse: hopelessness, anxiety sensitivity, impulsivity, and sensation seeking. This article reviews findings from the previous trials of personality-targeted interventions (i.e., Preventure programme) with adolescents and discuss the promises and benefits of these interventions for targeting community samples of high-risk adolescents at school level for reducing substance misuse and related mental health problems. Findings indicated that this programme has been successful in reducing the rates of alcohol and illicit drug use and substance-related harms by ~50% in high-risk adolescents with the effects last for up to 3 years. These interventions were also associated with a 25% reduction in likelihood of transitioning to mental health problems, such as anxiety, depression, suicidal ideation, and conduct problems. The programme is particularly beneficial for youth with more significant risk profiles, such as youth reporting clinically significant levels of externalizing problems, and victimized adolescents. A key strength of the Preventure programme is that it is embedded in the community and provides substance use intervention at school level to the general samples of high-risk adolescents who might not otherwise have access to those programmes.

Process variables predicting changes in adolescent alcohol consumption and mental health symptoms following personality-targeted interventions

OBJECTIVE

This study aims to identify key process variables that are associated with changes in alcohol consumption and mental health symptoms over 12months following personality-targeted interventions in youth.

METHOD

154 high-risk youth (aged 12-13years) in 7 Montreal high schools were identified using the Substance Use Risk Profile Scale and participated in personality-matched interventions. Preliminary process variables were identified using a combination of psychotherapy process variables and youth-generated (qualitative) feedback immediately post-intervention.

RESULTS

Learning, skill development and a positive group experience were key to positive behavioural change. Youth-generated feedback independently accounted for 12-25% of the variance in the change in alcohol use and mental health symptoms over 12months. Changes in cognitive distortions and self-esteem accounted for somewhat less of the variance in alcohol use (0-9%), but a moderate-to-large portion of the variance in changes in mental health symptoms (up to 44%).

CONCLUSIONS

The study findings highlight candidate process variables relevant to future implementations of this program that might inform change processes relevant to brief interventions with youth more generally. This study suggests that youth experiences can indicate proximal measures of program efficacy, and has implications for the dissemination of this brief intervention program. Clinical Trial registered on www.ClinicalTrials.gov, "Does Delaying Adolescent Substance Use Lead to Improved Cognitive Function and Reduce Risk for Addiction", study NCT01655615.

A cluster-randomized controlled trial evaluating the effects of delaying onset of adolescent substance abuse on cognitive development and addiction following a selective, personality-targeted intervention programme: the Co-Venture trial

AIMS

Substance use and binge drinking during early adolescence are associated with neurocognitive abnormalities, mental health problems and an increased risk for future addiction. The trial aims to evaluate the protective effects of an evidence-based substance use prevention programme on the onset of alcohol and drug use in adolescence, as well as on cognitive, mental health and addiction outcomes over 5 years.

DESIGN

Thirty-eight high schools will be recruited, with a final sample of 31 schools assigned to intervention or control conditions (3826 youth). Brief personality-targeted interventions will be delivered to high-risk youth attending intervention schools during the first year of the trial. Control school participants will receive no intervention above what is offered to them in the regular curriculum by their respective schools.

SETTING

Public/private French and English high schools in Montreal (Canada).

PARTICIPANTS

All grade 7 students (12-13 years old) will be invited to participate. High-risk youth will be identified as those scoring one standard deviation or more above the school mean on one of the four personality subscales of the Substance Use Risk Profile Scale (40-45% youth).

MEASUREMENTS

Self-reported substance use and mental health symptoms and cognitive functioning measured annually throughout 5 years. Primary outcomes are the onset of substance use disorders at 4 years post-intervention (year 5). Secondary intermediate outcomes are the onset of alcohol and substance use 2 years post-intervention and neuropsychological functions; namely, the protective effects of substance use prevention on cognitive functions generally, and executive functions and reward sensitivity specifically.

CONCLUSION

This longitudinal, cluster-randomized controlled trial will investigate the impact of a brief personality-targeted intervention program on reducing the onset of addiction 4 years-post intervention. Results will tease apart the developmental sequences of uptake and growth in substance use and cognitive development in adolescence using developmentally sensitive neuropsychological measures.

Effectiveness of a selective alcohol prevention program targeting personality risk factors: Results of interaction analyses

AIM

To explore whether specific groups of adolescents (i.e., scoring high on personality risk traits, having a lower education level, or being male) benefit more from the Preventure intervention with regard to curbing their drinking behaviour.

DESIGN

A clustered randomized controlled trial, with participants randomly assigned to a 2-session coping skills intervention or a control no-intervention condition.

SETTING

Fifteen secondary schools throughout The Netherlands; 7 schools in the intervention and 8 schools in the control condition.

PARTICIPANTS

699 adolescents aged 13-15; 343 allocated to the intervention and 356 to the control condition; with drinking experience and elevated scores in either negative thinking, anxiety sensitivity, impulsivity or sensation seeking.

MEASUREMENTS

Differential effectiveness of the Preventure program was examined for the personality traits group, education level and gender on past-month binge drinking (main outcome), binge frequency, alcohol use, alcohol frequency and problem drinking, at 12months post-intervention.

INTERVENTION AND COMPARATOR

Preventure is a selective school-based alcohol prevention programme targeting personality risk factors. The comparator was a no-intervention control.

FINDINGS

Intervention effects were moderated by the personality traits group and by education level. More specifically, significant intervention effects were found on reducing alcohol use within the anxiety sensitivity group (OR=2.14, CI=1.40, 3.29) and reducing binge drinking (OR=1.76, CI=1.38, 2.24) and binge drinking frequency (β=0.24, p=0.04) within the sensation seeking group at 12months post-intervention. Also, lower educated young adolescents reduced binge drinking (OR=1.47, CI=1.14, 1.88), binge drinking frequency (β=0.25, p=0.04), alcohol use (OR=1.32, CI=1.06, 1.65) and alcohol use frequency (β=0.47, p=0.01), but not those in the higher education group. Post hoc latent-growth analyses revealed significant effects on the development of binge drinking (β=-0.19, p=0.02) and binge drinking frequency (β=-0.10, p=0.03) within the SS personality trait.

CONCLUSIONS

The alcohol selective prevention program Preventure appears to have effect on the prevalence of binge drinking and alcohol use among specific groups in young adolescents in the Netherlands, particularly the SS personality trait and lower educated adolescents.

Personality dimensions and substance use in individuals with mild to borderline intellectual disabilities

AIMS

The aim of this study was to examine the role of the personality dimensions anxiety sensitivity, negative thinking, impulsivity and sensation seeking (as assessed by the revised version of the Substance Use Risk Profile Scale; SURPS) in substance use in individuals with mild to borderline intellectual disabilities (MBID).

METHOD

We tested the relationship between level of ID and SURPS personality dimensions and the relationship between SURPS personality dimensions and severity of alcohol and drug use. Participants were 118 persons (mean age 20.5 years) with a mean IQ of 71.1 admitted to care facilities for persons with MBID and severe behavioral problems.

RESULTS

We found no significant relationship between level of ID and the four personality dimensions. In addition, findings showed that individuals with lower levels of anxiety sensitivity, higher levels of negative thinking, impulsivity and sensation seeking showed more severe alcohol use. Individuals with higher levels of negative thinking and sensation seeking had more severe drug use.

CONCLUSIONS AND IMPLICATIONS

The SURPS personality dimensions identify persons at increased risk for substance use disorders and might be useful in developing selective substance use interventions for individuals with MBID.

Personality-Targeted Interventions for Substance Use and Misuse

Purpose of Review

Personality factors have been implicated in risk for substance use disorders through longitudinal and neurobiologic studies for over four decades. Only recently, however, have targeted interventions been developed to assist individuals with personality risk factors for substance use disorders manage their risk. This article reviews current practices in personality-targeted interventions and the eight randomised trials examining the efficacy of such approaches with respect to reducing and preventing substance use and misuse.

Recent Findings

Results indicate a moderate mean effect size for personality-targeted approaches across several different substance use outcomes and intervention settings and formats.

Conclusions

Personality-targeted interventions offer several advantages over traditional substance use interventions, particularly when attempting to prevent development of problems in high-risk individuals or when addressing concurrent mental health problems in brief interventions.

Personality profile of binge drinking in university students is modulated by sex. A study using the Alternative Five Factor Model

BACKGROUND

The prevalence of binge drinking (BD), found especially among young people, is increasing worldwide and has become an important social and health concern. We studied, for the first time, the personality profile, using the Alternative Five Factor Model, among university students with BD and healthy controls, taking into account the possible influence of sex.

METHODS

70 participants with BD (30 men) and 70 healthy controls (30 men) were included, selected to control for characteristics that are known to be related to BD (physical and mental disorders, consumption of other drugs, circadian rhythms), completed the Zuckerman-Kuhlman Personality Questionnaire (ZKPQ).

RESULTS

The scores on Neuroticism-Anxiety and Impulsive Sensation-Seeking were higher in the BD group compared to the controls (p<0.001 in both cases). The higher scores in the BD group in Neuroticism-Anxiety are due to higher scores in the women's group (p=0.014), while those in Impulsive Sensation-Seeking are due to higher scores in the men's group (p=0.009), both in the Impulsivity and in the Sensation-Seeking subscales (p<0.045).

CONCLUSIONS

Sex could be a factor that modulates the endophenotype of drug dependence (impulsive and anxious personality) and the prevention and/or treatment programs for BD should include not only the management of the personality risk factors but also different tailored approaches according to sex.

Effectiveness of a brief school-based intervention on depression, anxiety, hyperactivity, and delinquency: a cluster randomized controlled trial

Problematic substance use and mental health problems often co-occur in adolescents. Effective school-based interventions that are brief and target multiple problems are promising in the field of health promotion. Preventure is a brief, school-based, selective preventive intervention, tailored to four personality profiles. Preventure has already proved effective on alcohol outcomes. Previous trials also reveal effects on several mental health outcomes, yet the evidence for these outcomes is limited. This study presents the results of the Dutch Preventure Trial, on a range of mental health outcomes. In a cluster RCT, including 699 high risk students (mean age 14 years), the intervention effects on mental health problems at 2, 6, and 12 months post intervention were tested in the total high risk population and in four specific personality groups. No significant intervention effects were found on 22 from the 24 tests. A positive intervention effect on anxiety was found in the anxiety sensitivity personality group at 12-month follow-up, and a negative intervention effect on depression was found at 12-month follow-up in the negative thinking group. In post hoc growth curve analyses these effects were not found. This study found no convincing evidence for the effectiveness of Preventure in The Netherlands on mental health problems. This finding is not in line with the results of an earlier effectiveness study in the UK. This highlights the need for more research into the knowledge transfer model of interventions, to ensure that interventions are effective in a variety of circumstances.

Geographical variation in the prevalence of heavy drinking in young Swiss men

BACKGROUND

Not much is known about how much geographical units matter for heavy alcohol consumption and how much of the geographical variations are explained by characteristics such as institutional alcohol policies and regional economic conditions. The study aim was to address these gaps considering three types of heavy alcohol consumption.

METHODS

Analyses were based on data collected on 5879 men (age: 20.0 years, standard deviation: 1.2) years participating in the Cohort Study on Substance Use Risk Factors in Switzerland. Generalized linear mixed models were used to assess overall prevalence, geographical variations in prevalence across geographical units (institutional units, economic micro regions, linguistic regions, urban/rural status), and explanatory variables in three different types of heavy alcohol consumption (heavy weekend drinking, heavy workweek drinking, heavy volume drinking).

RESULTS

The overall prevalence for heavy weekend drinking was 46.8%, 10.8% for heavy volume drinking and 3.6% for heavy workweek drinking. The extent and locations of geographical variation in prevalence rates were contingent upon the type of alcohol consumption. Institutional alcohol policies explained substantial geographical variations in heavy weekend drinking, but not in heavy workweek or heavy volume drinking. Regional economic conditions were not related to alcohol consumption.

CONCLUSIONS

Different types of heavy alcohol consumption are determined by different geographical units. Alcohol policies protectively impact the major drinking style of heavy weekend drinking, but not other low prevalence forms of heavy drinking. Research and public health efforts must take into account these differences between types of alcohol consumption.

Trajectories of binge drinking and personality change across emerging adulthood

College students binge drink more frequently than the broader population, yet most individuals "mature out" of binge drinking. Impulsivity and sensation seeking traits are important for understanding who is at risk for maintaining binge drinking across college and the transition to adult roles. We use latent class growth analysis (LCGA) to examine longitudinal binge-drinking trajectories spanning from the end of high school through 2 years after college (M ages = 18.4 to 23.8). Data were gathered over 10 waves from students at a large Southwestern university (N = 2,245). We use latent factor models to estimate changes in self-reported impulsive (IMP) and sensation-seeking (SS) personality traits across 2 time periods-(a) the end of high school to the end of college and (b) the 2-year transition out of college. LCGA suggested 7 binge-drinking trajectories: frequent, moderate, increasing, occasional, low increasing, decreasing, and rare. Models of personality showed that from high school through college, change in SS and IMP generally paralleled drinking trajectories, with increasing and decreasing individuals showing corresponding changes in SS. Across the transition out of college, only the increasing group demonstrated a developmentally deviant increase in IMP, whereas all other groups showed normative stability or decreases in both IMP and SS. These data indicate that "late bloomers," who begin binge drinking only in the later years of college, are a unique at-risk group for drinking associated with abnormal patterns of personality maturation during emerging adulthood. Our results indicate that personality targeted interventions may benefit college students.