Peer Victimization Exposure and Subsequent Substance Use in Early Adolescence: The Role of Sleep Problems.

While sleep problems are positively associated with both peer victimization and substance use, previous studies largely have ignored the indirect role sleep problems may play in this association. This three-wave longitudinal study aimed to determine whether sleep problems might link peer victimization to subsequent substance use. Participants were 986 youth (53.7% female, Mage = 12.32 [SD = 0.54 years], 55.6% White, 24.4% Latinx, 22.8% African American/Black, 11.1% Multiracial/Multiethnic, 13.4% Asian/Pacific Islander, and 6.4% Native American) from three U.S. public middle schools. A structural equation model controlling for multiple potential confounds revealed an indirect effect of peer victimization on substance use through sleep problems. Multiple group analyses indicated that the indirect effect was larger for females than for males. Effects did not differ across school socioeconomic level. The results provide further support to include peer victimization when considering factors that may influence adolescent sleep issues and subsequent substance use.

College students' using marijuana to sleep relates to frequency, problematic use, and sleep problems.

OBJECTIVE: Given the rising rates of insufficient sleep and the popularity of marijuana, we investigated using marijuana as a sleep aid, marijuana use frequency, problematic marijuana use, and sleep problems. Participants: Participants included a convenience sample of college students who endorsed using marijuana in the past year from May to December 2013 (N = 354; 68% female, 57% White). Methods: Path analyses investigated if using marijuana to sleep predicted: (1) marijuana use outcomes and (2) sleep problems; and if sleep problems predicted marijuana use outcomes. Results: Using marijuana to sleep was related to increased use and problematic use, as well as worse sleep efficiency. Daytime dysfunction related to sleepiness was associated with elevated levels of marijuana use and problematic use. Similar associations were found across sex and race. Conclusions: College students should be informed of the potential misconceptions between marijuana and improved sleep and provided with evidence-based alternatives to improve their sleep.

A Longitudinal Study of the Bidirectional Relations Between Anxiety Symptoms and Peer Victimization in Urban Adolescents.

The current study examined bidirectional relations between anxious symptoms and two forms of peer victimization (i.e., overt and relational) within an underrepresented sample of urban adolescents during key transition periods (i.e., elementary to middle school; middle school to high school) and the following 2 years. A predominantly African American sample (91%) of 358 adolescents (56% female, mean age = 12.10 years) living in low-income urban areas were assessed annually across 4 years. Using self-report measures, adolescents reported on their past year experiences of anxiety and peer victimization. Longitudinal path analyses tested progressively complex models for each type of victimization. Anxious symptoms predicted both overt and relational victimization at the time of transition (Wave 1 to Wave 2) and the following year (Wave 2 to Wave 3). Furthermore, whereas previous levels of victimization and future anxious symptoms were positively correlated over time, only relational victimization at Wave 1 predicted anxious symptoms at Wave 2. Prior levels of each construct were the strongest predictor of future outcomes (e.g., anxious symptoms at Wave 1 predicting anxious symptoms at Wave 2). Overall, there was little support for bidirectional relations between anxiety symptoms and peer victimization. Intervention and prevention programs seeking to reduce peer victimization or anxiety should start by targeting the symptom/behavior of interest. Interventions that target anxious thoughts and feelings during these key transition times in adolescence should be assessed as areas of priority.

Motivations for the nonmedical use of prescription drugs in a longitudinal national sample of young adults.

INTRODUCTION: People's motivations for nonmedical use of prescription drugs (NMUPD) are not well studied, particularly in longitudinal representative samples. However, understanding which motivations are most popular and how these change over time for specific groups is important to inform interventions for NMUPD. METHODS: The current study examined how young adults' motives for NMUPD changed over young adulthood, using a nationally representative sample of 12,223 young adults in 36 cohorts (1976-2012) as part of the Monitoring the Future study across three biennial waves (waves 1, 2, 3: modal ages 19/20, 21/22, and 23/24 years). We investigated these young adults' motivations for using stimulants, central nervous system depressants, and opioids when controlling for possible cohort effects. We included sex and college attendance as potential moderators. RESULTS: Participants commonly reported recreational and self-treatment motivations over time and across drug classes, reporting four to five popular motivations in each drug class. Generalized estimating equations repeated measure analyses revealed relatively stable NMUPD motivations across young adulthood. Participants reported some reductions in experimentation and boredom as motivations for NMUPD and increases in certain self-treatment motivations, depending on prescription drug class. Overall, men were more likely to endorse recreational motivations, whereas women were more likely to endorse self-treatment motivations, though this varied somewhat by prescription drug class. Young adults not enrolled in college courses were more likely to endorse using stimulants nonmedically for different reasons than their peers who were enrolled. CONCLUSIONS: NMUPD prevention and treatment efforts tailored to the young adult population should include methods to reduce both self-treatment and recreational use and need to consider prescription drug class, sex, and college attendance.

Use of prescription drugs and future delinquency among adolescent offenders.

Non-medical use of prescription drugs (NMUPD) by adolescents is a significant public health concern. The present study investigated the profile of NMUPD in 1349 adolescent offenders from the Pathways to Desistance project, and whether NMUPD predicted future delinquency using longitudinal data. Results indicated that increased frequency and recency of NMUPD in adolescent offenders are related to some demographic factors, as well as increased risk for violence exposure, mental health diagnoses, other drug use, and previous delinquency, suggesting that severity of NMUPD is important to consider. However, ANCOVA analyses found that NMUPD was not a significant predictor of drug-related, non-aggressive, or aggressive delinquency 12 months later beyond other known correlates of delinquency. Age, sex, exposure to violence, lower socioeconomic status, more alcohol use, and having delinquency histories were more important than NMUPD in predicting future delinquency. These findings suggest that although NMUPD is an important risk factor relating to many correlates of delinquency, it does not predict future delinquency beyond other known risk factors.