Adolescent Alcohol Use Research Articles

Preadolescent individual, familial, and social risk factors associated with longitudinal patterns of adolescent alcohol, cannabis, and other illicit drug use in a population-representative cohort.

The aim of this exploratory study was to identify developmental patterns of adolescent concurrent alcohol, cannabis, and other illicit drug use and their preadolescent individual, familial, and social risk factors in a population-representative cohort from the province of Quebec, Canada (N = 1,593; 48.4% male). Age 12-17 years self-reports of alcohol, cannabis, and other illicit drug use were collected. Latent growth modeling was used to analyze developmental patterns of single- or polysubstance use (SU/PSU), and multinomial regression examined their association with risk factors assessed at age 10-12 years. Five developmental patterns were revealed, including nonusers (12.8% sample) and four classes reflecting different levels of SU/PSU (5.8%-37.5%), varying in severity based on onset, frequency, and type of substances used. Boys and girls were similarly represented throughout SU/PSU patterns. In comparisons with nonusers, several preadolescent risk factors were associated with increasing severity of SU/PSU. Possibly indexing fearlessness/disinhibition, low internalizing symptoms were common to all adolescent users. An earlier onset of substance use and increasing use of substances throughout adolescence were linked with having deviant peers for all user classes but later-onset users. Preadolescents manifesting externalizing problems and exposed to family adversity in addition to the above risk factors showed the earliest onset and most frequent adolescent SU/PSU, especially those also exposed to less appropriate parenting. Consistent with the developmental model of substance use, the nature, number, and severity of preadolescent risk factors distinguished between the type and severity of SU/PSU patterns in adolescence and call for a consistent strategy of universal, selective, and indicated preventive interventions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Examining the link between age of alcohol initiation, adolescent alcohol use and adult substance use

Abstract Background Understanding the relationship between adolescent alcohol use and adult substance use is important for prevention programmes. Existing evidence presents divergent findings and potential mechanisms are debated. Methods We estimated associations between the age of alcohol initiation and alcohol use at age 17 and substance use at age 20 in a nationally representative cohort (n = 4554). Weighted logistic regression models were fitted using Generalised Estimating Equations in multiply imputed and complete case data. Results Our analysis identified that 27% of participants reported first alcohol use at ≤ 14 years old, with 37% engaging in risky alcohol use by age 17. At age 20, 14% reported hazardous alcohol use, while 38% used tobacco, 24% cannabis, and 28% other drugs. The age at which alcohol was initiated and risky alcohol use at 17 years old were both strongly associated with alcohol, tobacco, cannabis and other illicit drug use at 20 years old. Sequential change in effect estimates coupled with non-overlapping confidence intervals suggest a dose-response relationship between age of alcohol initiation and tobacco and other drug use at age 20. Conclusions First use of alcohol at 14 or younger was common. Earlier alcohol initiation and risky alcohol use are each associated with substantially elevated risk for substance use at 20 years old even after accounting for common liability factors. Acknowledgement: Growing Up in Ireland (GUI) is funded by the Department of Children, Equality, Disability, Integration and Youth (DCEDIY). It is managed by DCEDIY in association with the Central Statistics Office (CSO). Results in this report are based on analyses of data from Research Microdata Files provided by the CSO. Neither the CSO nor DCEDIY take any responsibility for the views expressed or the outputs generated from these analyses. Key messages • Delaying alcohol initiation and preventing risky alcohol use during adolescence may reduce levels of substance use in young adults. • Self-reported early use of alcohol remains common.

Characteristics of adolescents with acute alcohol intoxication in Belgium

Abstract Background Binge drinking and acute alcohol intoxication (AAI) are common in Belgian adolescents, posing a risk of serious health consequences. To develop cost-effective preventive measures for problematic alcohol use in adolescents in Belgium, more insight into the background of this group is necessary. Methods To gain more insight into the prevalence, medical characteristics and context of AAI, a retrospective multicentre hospital chart study was performed on adolescents aged 10 to 18 years with AAI in Antwerp, Belgium from 2015-2021. Furthermore, a prospective intervention study for adolescents with AAI in Antwerp was set up in 2023, of which the first results were not yet known at the time of submission. However, these results will be presented at the conference, if available. Results Over the study period, a total of 1032 admissions related to alcohol intoxication occurred in 1016 patients, with a median age of 16.6 years old and a median blood alcohol intoxication (BAC) of 1.95 g/L. There was combined drug use in 10% of the cases. Only 17% of the patients received additional care after admission. These findings did not significantly change over the study period. Multiple linear regression analyses indicated that after correcting for covariates, higher age, no combined drug use and decreased consciousness at admission were associated with more severe AAI cases (higher BAC). Conclusions AAI is prevalent among Belgian adolescents. Therefore, better-targeted preventive measures and policies are needed. Our findings could be taken into account when developing preventive measures. However, data addressing the demographics and context of AAI were mostly missing. Therefore, a prospective follow-up study was set up in Antwerp, which started in 2023 and is still ongoing. Furthermore, this study will investigate the feasibility and effectiveness of a follow-up intervention for this group of patients.

Supply of Alcohol in Early Childhood Leads to Higher Rates of Drinking in Adolescence

Abstract Background Adolescents often experience their first encounter with alcohol at home, provided by parents who perceive it as a means of safeguarding their children against later alcohol-related issues. However, research shows that parental supply of alcohol is a risk factor for adolescent drinking. Notably, existing studies solely focused on parental supply during adolescence, neglecting the prospective evaluation of parental alcohol provision during early childhood on later alcohol use. Methods The data came from the Czech part of the European Longitudinal Study of Pregnancy and Childhood (ELSPAC), a longitudinal birth cohort study (N = 5,777). Mothers reported on the frequency of offering alcohol to children when children were 3, 5, 7, and 11 years old. The outcome was adolescent alcohol use at ages 15 and 18, reported by adolescents, mothers, and pediatricians. Control variables included sex, maternal education, family structure, and parental alcohol consumption. Results Three classes of children were identified based on parental alcohol supply: abstainers (75.5% of sample), infrequent sippers (16.2%), and frequent sippers (8.3%). Parental drinking increased the risk of both infrequent and frequent sipping. These classes were entered into two structural models (age 15 and age 18 alcohol use modeled as latent factors), alongside covariates. Compared to abstainer class, infrequent and frequent childhood sippers exhibited significantly higher alcohol consumption at age 15 (β = .21, p < .001; β = .25, p < .001, respectively) and age 18 (β = .11, p < .05; β = .24, p < .001, respectively). Conclusions This study represents the first prospective investigation quantifying early childhood alcohol exposure and its subsequent association with adolescent alcohol consumption. Findings emphasize the influence of family dynamics on alcohol behaviors, underscoring the necessity for targeted preventive measures, particularly within families with higher parental alcohol consumption. Key messages • Offering alcohol to children at ages 3-11, even infrequently, significantly increases the risk of more frequent drinking at ages 15 and 18, compared to those with no early exposure. • Parents who drink are more likely to have children who sip alcohol early, leading to higher alcohol consumption in adolescence. Prevention efforts should focus on family habits and early education.

Alcohol related emergencies among adolescents admitted in a referral acute-care center for adults in Genoa, northwest Italy

Abstract Background As a result of underage drinking, adolescents have an increased risk of physical, mental, emotional, and social harm. Methods In order to assess the emergencies for alcohol use, data of the emergency department (ED) of San Martino Hospital - the referral acute-care center for adults in Genoa, Northwest Italy - was analyzed retrospectively. 330 records of 320 adolescents visiting the ED between 2014 and 2023 were considered. Results The median age of access was 16 (IQR 2), 54.8% were males, 17.4% had foreign nationalities, and the average blood alcohol concentration (BAC) was 1.8 g/L (SD 0.7), with 14.7% testing positive for other substances (6.1% benzodiazepines and 11.2% other drugs). 16.8%, 46.6% and 36.6% were assigned an emergency, urgent, and not-urgent acuity code. 2.8% had a repeated episode, 3.4% had to be removed for inappropriate behavior, 7.8% left spontaneously, 13.1% were hospitalized for additional care (5.5% in the Psychiatry ward). The average length of stay was 1.24 days (SD 5.86). Multivariable logistic regression showed that higher age, an emergency code and the use of other substances were positively associated with hospitalization [ORs 1.74 (95%CI 1.1-2.7), p 0.01; 7.1 (95%CI 2.2-22.4) p < 0.001; and 15.6 (95%CI 6.8-35.6) p < 0.001, respectively]. Admission in Psychiatry, in particular, was strongly associated with the use of other substances [OR 11.8 (95%CI 3.8-36.6), p < 0.001]. Multivariable linear regression showed that, in comparison with other access reasons, accidents and decreased consciousness were associated with higher BAC [beta 0.6 (95%CI 0.1-1.1), p 0.01; beta 0.8 (95%CI 0.3-1.2) p < 0.001]. Length of stay, however, was associated with lower BAC [beta -0.2 (95%CI -0.3 -0.01), p 0.04]. Conclusions In Italy, binge drinking affects 120,000 adolescents aged 11-17. Our findings highlight the harm of this practice and support the need for prompt interventions to reduce the onset and prevalence of adolescent alcohol use.

5.Y.2. Alcohol intoxication among adolescents in Italy, Belgium and The Netherlands

Abstract Excessive drinking behavior poses a significant risk to the health of adolescents and contributes to high social and health costs. It is also well-documented that engaging in risky drinking behavior at a young age increases the likelihood of developing alcohol use disorders and other mental health disorders later in life. Therefore, the timely development of adequate interventions to prevent and reduce such behavior is an important public health task. The initial step here is to gather comprehensive data on the phenomenon. Studying alcohol intoxication data among adolescents is an important source in this context. In the Netherlands, data on alcohol intoxication in adolescents have been routinely collected for several years, leading to a successful transmural framework aimed at supporting these young individuals and their parents. As countries are at varying stages in addressing this issue, the objective of this workshop is to facilitate mutual learning about effective prevention initiatives targeting problematic alcohol use in young people. The workshop will feature presentations from four studies representing three countries: Italy, Belgium, and the Netherlands. Allegra Ferrari from Italy will discuss alcohol-related emergencies among adolescents admitted to an emergency department in Genoa, emphasizing the importance of urgent interventions to mitigate adolescent alcohol use. Hanna van Roozendaal from Belgium will present data from both retrospective and prospective studies on adolescents with acute alcohol intoxication in Antwerp hospitals, exploring the feasibility of follow-up interventions. Louise Pigeaud from the Netherlands will share data from a cohort of individuals under 18 years presented with acute alcohol intoxication symptoms at an emergency department between 2015-2023 to monitor trends in admission characteristics. Finally, Guido van Hal will focus more in depth on the differences and similarities in adolescents accessing emergency care for acute alcohol intoxication in Italy, Belgium and The Netherlands. The workshop will conclude with an open discussion on topics such as the necessary data to be registered for minors with acute alcohol intoxication, the most effective methods for preventing/reducing alcohol intoxication in these age groups, and the potential transferability of the successful Dutch transmural framework to other countries. Key messages • Acute alcohol intoxication and problematic alcohol use in minors can lead to significant alcohol-related issues in adulthood. • Collecting and analyzing high-quality data can facilitate the development of interventions aimed at reducing and preventing alcohol-related issues in adolescents.

Predictors and outcomes of adolescent alcohol and drug use: a scoping review

Abstract Background Adolescence is a pivotal life stage marked by educational advancement, entry into the workforce and formation of lasting relationships. Globally, adolescence is also the peak period during which individuals first engage in alcohol and/or drug consumption. This scoping review aimed to summarize existing longitudinal research on factors and outcomes related to adolescent substance use to identify gaps in existing evidence. Methods A scoping review was conducted in accordance with the PRISMA extension for scoping reviews. A systematic literature search was conducted on PubMed. Additional studies were identified through hand-searching key reference lists and Google Scholar searches. A narrative synthesis was completed. Results 123 studies were included; 12 reviews and 111 cohort studies. 60% of cohort studies originated from North America, 29% Europe, 7% Australia/New Zealand, 2% South America and 2% Asia. Factors consistently associated with increased risk of ASU include male sex, increasing age, externalizing disorders, adverse childhood experiences and peer or parental substance use. Few studies considered wider community or neighbourhood factors. Early initiation and higher frequency of adolescent drug use were predictive of later-life substance use patterns, education derailment, contact with the justice system and mental health disorders. Conclusions The body of longitudinal evidence on adolescent substance use is rapidly expanding yet significant research gaps exist. Rising levels of cocaine use and its substantial health impacts motivate further research on all potentially important factors associated with cocaine use to guide interventions for prevention and treatment. Key messages • There are important gaps in existing research on adolescent substance use. • These include neighbourhood influences and factors associated with initiation of illicit drugs other than cannabis.

Supplemental Material for Preadolescent Individual, Familial, and Social Risk Factors Associated With Longitudinal Patterns of Adolescent Alcohol, Cannabis, and Other Illicit Drug Use in a Population-Representative Cohort

Supplemental Material for Preadolescent Individual, Familial, and Social Risk Factors Associated With Longitudinal Patterns of Adolescent Alcohol, Cannabis, and Other Illicit Drug Use in a Population-Representative Cohort

Sibling socialization of alcohol use during adolescence: An integrated model of sibling influence processes.

Research demonstrates that siblings, especially older siblings, make unique contributions to adolescents' substance use above and beyond shared genetics and shared parenting. Older siblings' influences on younger adolescent siblings' alcohol use operate through both direct and indirect pathways. Using three waves of longitudinal data, the present study tested an integrated model of sibling influence processes focused on the linkages between older adolescent siblings' earlier alcohol use and younger adolescent siblings' later alcohol use. Longitudinal study using data collected from families on three occasions: Time 1 (March 2019-February 2020), Time 2 (July 2020-February 2021) and Time 3 (November 2021-February 2022) via online surveys. Families resided in five midwestern states in the US (Illinois, Indiana, Ohio, Pennsylvania and Wisconsin). Participants included two adolescent-aged siblings and one parent from 682 families (n = 2046 persons). Alcohol use by adolescents and parents was assessed at Time 1; younger siblings' social alcohol expectancies and perceptions of modeling were measured at Time 2; and younger siblings' alcohol use was measured at Time 3. Older siblings' earlier alcohol use predicted younger siblings' later drinking both directly [b = 0.15, standard error (SE) = 0.04, β = 0.17, P < 0.001] and indirectly through younger siblings' social alcohol expectancies [δ = 0.02, SE = 0.008, 95% confidence interval (CI) = 0.003, 0.03]. The direct (δ = -0.14, SE = 0.07, 95% CI = -0.27, -0.01) and indirect (δ = 0.03, SE = 0.02, 95% CI = 0.0001, 0.06) links were further moderated by younger siblings' reports of sibling modeling, but not by gender composition of the sibling dyad or the interaction of modeling and gender composition. Older siblings' alcohol use appears to influence younger siblings' later alcohol use directly, as well as indirectly through younger siblings' expectancies about alcohol. The global context of the sibling relationship, in this case sibling modeling, may further amplify or dampen these pathways of influence.

To study impact of drug abuse in adolescence

Adolescent drug usage can lead to a variety of outcomes that are different from those associated with adult drug use. Alcohol is a common illicit substance in youth, and the molecular mechanisms behind alcohol-induced neuro inflammation, brain injury, and behavioural dysfunction caused by ethanol are not fully understood. In the adult brain, alcoholism is associated with a higher chance of neuropsychiatric diseases. Adolescent alcohol use can cause long-lasting modifications to the control of cytokines and the sensitivity of the hypothalamic-pituitary-adrenal (HPA) axis, which can impact neuropathology and behaviour long into adulthood... Synthetic androgens used for muscle and strength gain, especially in adolescence, are called alcoholic androgenic steroids (AAS). Adult neuropathology and alcoholism can be prevented and treated using AAS, an anabolic steroid.

An Examination of the Relationship between Peer Relationships, Attachment Styles, and Alcohol and Cigarette Use in Adolescents: Sample of Famagusta

An Examination of the Relationship between Peer Relationships, Attachment Styles, and Alcohol and Cigarette Use in Adolescents: Sample of Famagusta

Leveraging bifactor modeling to test prospective direct and indirect effects of adolescent alcohol use and externalizing symptoms on the development of task-general executive functioning

Leveraging bifactor modeling to test prospective direct and indirect effects of adolescent alcohol use and externalizing symptoms on the development of task-general executive functioning

Association of physical activity and sitting time with tobacco and alcohol use in 222,495 adolescents from 66 countries

BackgroundThe prevalence of tobacco and alcohol use among adolescents is alarming, and these substances are among the leading risk factors for current and future health among adolescents. Physical activity has the potential to help prevent substance use among adolescents. The objective of this study was to evaluate the association between physical activity, modes of transportation to or from school, and sitting time with tobacco and alcohol use among 222,495 adolescents.MethodsThis cross-sectional study used data from national surveys conducted in 66 countries, obtained through the Global School-based Student Health Survey, and included adolescents aged 11 to 17 years. Information on physical activity, transportation to or from school, sitting time, and tobacco and alcohol use was collected through self-report questionnaires. Generalized linear models were employed to estimate the associations between these variables.ResultsThe analysis, adjusted for sex, age, and region, revealed that being physically active was associated with lower odds of smoking (OR: 0.86, 95%CI: 0.83–0.89), alcohol use (OR: 0.74, 95%CI: 0.72–0.76), binge drinking (OR: 0.66, 95%CI: 0.62–0.69), and drunkenness (OR: 0.85, 95%CI: 0.83–0.88) compared to inactivity. Insufficiently active participants also had lower odds of tobacco use (OR: 0.83, 95%CI: 0.80–0.85), alcohol use (OR: 0.77, 95%CI: 0.75–0.79), binge drinking (OR: 0.91, 95%CI: 0.87–0.96), and drunkenness (OR: 0.88, 95%CI: 0.85–0.90) compared to inactive participants. Additionally, active transportation to or from school was associated with lower odds of tobacco use (OR: 0.97, 95%CI: 0.95–0.99), alcohol use (OR: 0.94, 95%CI: 0.92–0.96), and binge drinking (OR: 0.78, 95%CI: 0.75–0.81) compared to those using passive transportation. Participants with acceptable sitting time, however, were more likely to use tobacco (OR: 1.48, 95%CI: 1.45–1.52), use alcohol (OR: 1.68, 95%CI: 1.64–1.72), binge drink (OR: 1.68, 95%CI: 1.62–1.75), and experience drunkenness (OR: 1.66, 95%CI: 1.62–1.69) compared to those with excessive sitting time.ConclusionBeing physically active, even at insufficient levels, may have beneficial effects on tobacco and alcohol use in adolescents. Acceptable sedentary time, on the other hand, was positively associated with tobacco and alcohol use.

Associations of Alcohol Outcome Expectancies with Alcohol Use in Adolescence and Emerging Adulthood: A Meta-Analysis

Associations of Alcohol Outcome Expectancies with Alcohol Use in Adolescence and Emerging Adulthood: A Meta-Analysis

Positive Childhood Experiences are Associated With Alcohol Use in Adolescent and Emerging Adult Females by Adverse Childhood Experiences Dimension

PurposeExperiencing multiple adverse childhood experiences (ACEs) is associated with alcohol use in female adolescents and emerging adults. Protective and compensatory experiences (PACEs) have been theorized to off-set the health and behavioral consequences from the accumulation of ACEs throughout childhood. This study examines the association between protective experiences and subsequent alcohol and binge alcohol use frequency over one month among female adolescent and emerging adults reporting high and low levels of two ACE dimensions (household dysfunction and emotional abuse/neglect). MethodsOne hundred 43 females between the ages of 15–24 who indicated at least one binge episode in the past two weeks completed the six-item ACEs scale, the PACEs scale, and demographics at baseline. Alcohol consumption was measured prospectively over the next month during weekly appointments using the timeline follow back approach. ResultsTwo PACEs factors had significant direct associations, a source of unconditional love was associated with less frequent alcohol use (β = −0.437, 95% confidence interval [CI] -0.744, −0.131, exp(β) = 0.65, p = .005) in the context of high household dysfunction; and having a trusted adult to count on for help and advice (β = −1.373, 95% CI -2.283, −0.464, exp(β) = 0.25, p = .003) predicted fewer binge occasions in the context of high emotional abuse/neglect. Regardless of ACE dimension exposure, nonsport social group membership was associated more frequent alcohol use over the month across all ACE dimensions (β = 0.11-0.74, 95% CI -0.11, 0.74, exp(β) = 1.37 – 1.62, p ≤ .002); and having a trusted adult to count on for help and advice was associated with a 5.7 times more frequent of alcohol use among those with low household dysfunction (β = 1.74, 95% CI 0.83, 2.65, exp(β) = 5.70, p < .001). DiscussionFew PACE items are associated with direct reductions in alcohol outcomes. Indeed, there is consistently heightened risk associated with nonsport group membership for alcohol use frequency, regardless of experiences of childhood adversity. Future research should identify which protective factors have the most potential to off-set alcohol use by ACE dimension.

Combined Use of Cognitive Behavioral Therapy (CBT) and Its Healing Impact on Drug Abusers Who Are Addicted to Drugs: A Scoping Review

Aims: The aim of this study is to assist individuals in healing from addiction; it is essential to implement a combination of interventions, such as CBT, that are proven to be effective in treating drug abuse with a holistic approach that integrates psychological and social aspects for optimal results, according to empirical evidence. Methods: The search databases for this study were PubMed, ScienceDirect, and Google Scholar. Identify articles published in the last 10 years (2014-2024), Randomized Control Trials (RCTs), English and Indonesian, Full-Text, and Teenagers to the Elderly. Using the PRISMA flowchart, data extraction and scoping with keywords (English): "Drug Addict OR Substance Abuse AND Cognitive Behaviour Therapy AND Dependence OR Substance-Related Disorder" and keywords in the Indonesian language "Pecandu Narkoba OR Penyalahguna Zat AND Cognitive Behaviour Therapy AND Ketergantungan OR Gangguan Terkait Zat." Results: The study found eight articles that met the criteria, the main findings showed the use of Modified Cognitive Behavioral Therapy (M-CBT) in enhancing recovery motivation among cocaine-dependent individuals. Interventions such as galantamine, C-CBT, and computer-based CBT also show promise in reducing cocaine use. Additionally, combining CBT with contingency management (CM) facilitates changes in neural activity related to cognitive control. CBT paired with MET+ABI+ATTI and Female-Specific CBT (FS-CBT) effectively addresses alcohol use in adolescents and women. Conclusion: This study highlights various CBT approaches that can be combined, such as M-CBT for cocaine independence and computer-based CBT, as well as the combination of CBT with contingent management that influences neural activity related to cognitive control.

Enjoyment in Sport and Alcohol Use among Adolescents: Examining the Mediating Role of Engagement.

Alcohol consumption among young people is a significant public health concern. Previous studies have indicated that participation in sports, through the positive experiences it offers, may function as a protective factor against alcohol intake. This study aimed to examine the influence of enjoyment and personal fulfillment on adolescent alcohol use, exploring the role of engagement with sports as a mediating variable. A total of 370 adolescents (mean age = 15.08; SD = 1.48) participated in the study and completed the Alcohol Use Disorder Identification Test, the Enjoyment in Sports Scale, and the Athlete Engagement Questionnaire. The results demonstrated that enjoyment is related to lower alcohol consumption through personal fulfillment and engagement in sporting activity. It is crucial to facilitate positive experiences in sport that promote engagement and generate a sense of personal fulfillment, as these factors may reduce the likelihood of risky alcohol consumption.

Association between adolescent alcohol use and cognitive function in young adulthood: A co-twin comparison study.

Studies on adolescent alcohol use and cognition are often unable to separate the potential causal effects of alcohol use on cognition from shared etiological influences, including genetic influences or other substance use comorbidities also known to be associated with cognition, such as nicotine use. The present study aimed to fill this gap and clarify the relationship between adolescent alcohol use and young adult cognition by accounting for both measured and unmeasured confounders. A random effects model accounting for nesting in families was used to control for measured confounders. Next, co-twin comparisons were conducted within the full sample and in monozygotic twin pairs (MZ) to control for unmeasured genetic and environmental confounders shared by co-twins. Participants were 812 individuals (58.6% female, 361 complete pairs, 146 MZ pairs) from the longitudinal FinnTwin12 study in Finland. Adolescent alcohol use was indexed with measures of frequency of use and intoxication averaged across ages 14 and 17. Cognitive outcomes were measured at average age 22 and included Trail Making Test, California Stroop test, Wechsler Adult Intelligence subtests (Vocabulary, Block Design, Digit Symbol), Digit Span subtest of Wechsler Memory Scale, Mental Rotation Test and Object Location Memory test. Covariates included sex, parental education, general cognitive ability, current alcohol use and nicotine use. Greater frequency of alcohol use and frequency of intoxication across adolescence was associated with decreased vocabulary scores in the co-twin control [freq: stnd beta = -0.12, 95% confidence interval (CI) = -0.234, -0.013] and MZ only co-twin control models (freq: stnd beta = -0.305, 95% CI = -0.523, -0.087; intox: stnd beta = -0.301, 95% CI = -0.528, -0.074). In Finland, there appears to be little evidence that adolescent alcohol use causes cognitive deficits in young adulthood, except modest evidence for association of higher adolescent alcohol use with lower young adult vocabulary scores.

Personality, Social Factors, Brain Functioning, Familial Risk, and Trajectories of Alcohol Misuse in Adolescence

The development of an alcohol use disorder in adolescence is associated with increased risk of future alcohol dependence. The differential associations of risk factors with alcohol use over the course of 8 years are important for preventive measures. To determine the differential associations of risk-taking aspects of personality, social factors, brain functioning, and familial risk with hazardous alcohol use in adolescents over the course of 8 years. The IMAGEN multicenter longitudinal cohort study included adolescents recruited from European schools in Germany, the UK, France, and Ireland from January 2008 to January 2019. Eligible participants included those with available neuropsychological, self-report, imaging, and genetic data at baseline. Adolescents who were ineligible for magnetic resonance imaging or had serious medical conditions were excluded. Data analysis was conducted from July 2021 to September 2022. Personality testing, psychosocial factors, brain functioning, and familial risk of alcohol misuse. Hazardous alcohol use as measured with the Alcohol Use Disorders Identification Test scores, a main planned outcome of the IMAGEN study. Alcohol misuse trajectories at ages 14, 16, 19, and 22 years were modeled using latent growth curve models. A total of 2240 adolescents (1110 female [49.6%] and 1130 male [50.4%]) were included in the study. There was a significant negative association of psychosocial resources (β = -0.29; SE = 0.03; P < .001) with the general risk of alcohol misuse as well as a significant positive association of the risk-taking aspects of personality with the intercept (β = 0.19; SE = 0.04; P < .001). Furthermore, there were significant positive associations of the social domain (β = 0.13; SE = 0.02; P < .001) and the personality domain (β = 0.07; SE = 0.02; P < .001) with trajectories of alcohol misuse development over time (slope). Family history of substance misuse was negatively associated with general risk of alcohol misuse (β = -0.04; SE = 0.02; P = .045) and its development over time (β = -0.03; SE = 0.01; P = .01). Brain functioning showed no significant association with intercept or slope of alcohol misuse in the model. The findings of this cohort study suggest known risk factors of adolescent drinking may contribute differentially to future alcohol misuse. This approach may inform more individualized preventive interventions.

Sexual Minority Identity and Risky Alcohol Use: the Moderating Role of Aggressive Behavior.

Adolescent alcohol use has significant consequences for concurrent and longitudinal health and wellbeing, with sexual minority youth consistently reporting higher levels of alcohol use than their heterosexual peers. Understanding how individual-difference variables like aggressive behavior are associated with variability in sexual minority adolescents' higher levels of alcohol use offers novel theoretical insight into this vulnerability. The 81,509 participants were drawn from the Profiles of Student life: Attitudes and Behavior Study. They were ages 14-17 years (M = 15.38, SD = 1.09) and 50.1% were cisgender girls. For sexual identity, 88% were heterosexual, 5% were mostly heterosexual, were 4% bisexual, were 1% mostly gay or lesbian, and were 1% being gay or lesbian. Participants reported on alcohol use, aggressive behavior, and sexual identity. Gay/lesbian and mostly gay/lesbian adolescents who reported higher aggressive behavior had higher levels of alcohol use than their heterosexual peers who also reported higher aggressive behavior. The way in which aggressive behavior amplified the link between mostly gay/lesbian and gay/lesbian identities and alcohol use suggests the need for more research examining how this trait may heighten both exposure and reaction to minority stressors among some subgroups of sexual minority youth.