Juvenile justice-involved youth experience high rates of substance use, which is concerning given associated negative consequences, including health and functional deficits. Family and peer factors are associated with a high risk of substance use among justice-involved youth. It is hypothesized that this risk process operates through pro-drug attitudes. However, limited research has been conducted on the mechanisms through which family and peer factors increase risk for substance use among juvenile justice involved youth. The current study examined both the direct and indirect effects of family and peer substance use on youth's substance use (alcohol and illicit drug use). We also examined whether this relationship differs by race. 226 detained youth (81.9% male; 74.3% Black) were recruited from an urban county in the Midwest and completed a clinical interview and substance use assessment battery. A direct effect of family/peer risk on illicit drug use was found for all youth, though the effect was stronger among White youth. Results also supported the indirect effect pathway from family/peer risk to both illicit drug use and alcohol use through prodrug attitudes. This pathway did not vary by race. These findings suggest that interventions should focus on targeting both family/peer risk and pro-drug attitudes to reduce substance use. Given the racial difference in the direct effect of family/peer risk on illicit drug use, there may be other factors that influence risk more strongly for White youth, which warrants further investigation.

Objectives: Among Black Americans, young adulthood marks an important developmental period for the initiation of problematic substance use and related health disparities. Unique cultural factors, such as discrimination and racial identity, influence substance use during this period, but it is unknown whether they influence more severe patterns such as polysubstance use. The current study identifies prototypical patterns of substance use among Black young adults and examines whether cultural factors are associated with those patterns. Design: The current study used latent class analysis to characterize prototypical substance use among a community-based sample of Black young adults (N = 147). Culturally relevant correlates of substance use classes (i.e., perceived discrimination and racial identity) were examined in univariate and multivariate models. Results: Five profiles of substance use emerged, including three characterized by polysubstance use. In univariate models only, racial identity was differentially associated with membership in classes characterized by co-use of alcohol and cannabis. In both models, discrimination was significantly associated with membership in a class characterized by polysubstance use. Conclusion: Findings suggest a need to integrate cultural resilience factors into substance use interventions for Black young adults. Helping Black youth build coping skills for discrimination may also confer resilience against polysubstance use and associated health disparities. Public Significance StatementBlack young adults face greater problems related to substance use than their White peers. The results of this study indicate that Black young adults' racial discrimination experiences contribute to a more severe substance use pattern characterized by the use of multiple substances. Race-related cultural variables may help us understand the development of substance use disparities among Black Americans.

Introduction Cultural socialization is associated with reduced risk for several health outcomes among racial/ethnic minority youth. However, to date, less is known about its effect on substance use or the mechanisms through which this process may operate. The current study aimed to examine the effect of cultural socialization on alcohol use through alcohol expectancies among racial/ethnic minority youth. Methods 113 minority adolescents (69.9% African American; 13.3% Hispanic; 10.6% Multiracial; 2.7% American Indian/Alaskan Native) between ages 12 and 18 (mean age 15) were recruited from community-based after school centers. Participants completed measures on cultural socialization, four alcohol expectancy domains (i.e., positive social, wild and crazy, negative arousal, and sedation), and past year alcohol use. Results A significant indirect pathway between cultural socialization, alcohol expectancies and alcohol use was found for negative arousal expectancies (b = −0.160, Boot CI [95] = −0.413, −0.021). Indirect paths were non-significant for the other three alcohol expectancies. Conclusions Our findings suggest that cultural socialization can help reduce alcohol use among racial/ethnic minority adolescents, in part though influencing negative arousal expectancies. Given evidence that alcohol expectancies play an important and long-lasting role in alcohol use across development, incorporating cultural socialization into intervention programming for racial/ethnic minority youth may prove beneficial to reduce risk for alcohol use.

Background: Adolescent cannabis use is associated with increased risk for psychological problems, with evidence for more severe problems among youth who use cannabis in combination with other substances (i.e., polysubstance use). Juvenile offenders engage in both cannabis use and polysubstance use at higher rates than the general adolescent population. Yet, limited research has examined the relationship between cannabis poly-use (e.g., cannabis and alcohol use) and functional or psychological problems among juvenile offenders. Objectives: The current study addresses this gap by examining the association of polysubstance use of cannabis compared to cannabis only use with cognitive functioning, psychological distress, and substance-related problems among juvenile detainees. Methods: Participants were 238 detained youth ages 12–18 (80.4% male, 77.3% non-White) who completed assessments of substance use, intellectual functioning, psychological symptoms, and substance-related problems. Youth were also assessed by a clinical psychologist for substance use disorder. Results: Four cannabis-use typologies were identified; cannabis and alcohol use was the largest class, followed by cannabis only use, cannabis, alcohol and other drug use, then cannabis and other drug use. Polysubstance use was associated with lower scores on measures of intellectual functioning, more externalizing and internalizing symptomology, and more substance-related problems relative to cannabis only use. However, the relationship between polysubstance use and problems varied by typology. Conclusions: Findings suggest that justice-involved youth engaged in polysubstance use may be at greater need for concurrent academic, affective, and behavioral support in their rehabilitation and transition back to the community.