Abstract
BACKGROUND: Adolescent alcohol use is a significant public health concern and rates of alcohol use are higher among American Indian (AI) adolescents than national samples of non-AI youth. A potential factor in understanding AI alcohol use is cultural identity, which can vary widely based on experiences of historical trauma. We used latent class analysis to examine cultural identity in AI and White adolescents and their alcohol use outcomes in relation to the latent class solutions. METHODS: The samples included 3189 AI adolescents (M(age) = 14.76, 48.9% female) and 1579 White adolescents (M(age) = 15.56, 48.7% female) living on or near a reservation. Participants completed self-report measures of AI and White cultural identity affiliation, alcohol use, and alcohol-related problems. We examined (1) the best-fitting latent class solution with respect to American Indian (AI) and White cultural identity; (2) equivalence of the latent class solution; and (3) alcohol use outcomes across the optimal latent class solution. RESULTS: Latent profile analyses indicated an optimal 3-class solution in both the AI and White samples, which differed by level of affiliation with AI and White cultural identity. While the optimal number of classes were similar across racial groups (configural profile similarity), the nature of the classes differed (structural profile dissimilarity). The three classes represented low overall scores on AI and White cultural identity (Marginalized), a mixture of high and low scores on AI and White cultural identity (Third Culture), and overall high scores on AI and White cultural identity (Bicultural). Alcohol-related problems predicted membership in the Third Culture class compared with the Marginalized class and the Bicultural class. Specifically, youth in the Third Culture class reported significantly fewer alcohol-related problems than youth in the Marginalized and Bicultural classes. Alcohol use did not predict latent class membership. CONCLUSIONS: The future-oriented nature of the Third Culture class may provide protection against adverse alcohol-related outcomes. Research is needed to test interventions that target greater future orientation and future plans to integrate culture into adolescents' lives.