Abstract
BACKGROUND: While young adults are generally at highest risk for alcohol problems, not all age out of problem drinking. Evidence suggests that Blacks and Latinos age out more slowly than Whites, particularly among men. Targeting men, we investigated whether differences in lifecourse SES might explain racial/ethnic disparities in alcohol dependence in late young adulthood, along with how experiencing alcohol dependence at that life stage relates to subsequent SES. METHODS: We used longitudinal, national data to (i) describe racial/ethnic disparities in late young adult alcohol dependence criteria (LYADC), (ii) examine whether income trajectory in early young adulthood contributes to these racial/ethnic disparities, and (iii) test whether LYADC reciprocally predicts income trajectory in early midlife. Data were from the 1979 National Longitudinal Survey of Youth (N = 3,993), which measured LYADC in 1994 (mean age = 33). Income trajectory classes were derived for early young adulthood (mean ages = 21 to 31) and, separately, early midlife (mean ages = 35 to 45). Analyses included negative binomial regressions and multinomial regressions. RESULTS: Both Black and US-born Latino men reported more LYADC than White men. Further, membership in the persistently low and slow increase (vs. stable middle) early young adult income trajectory classes was associated with more LYADC. Multivariate analyses suggested that Black-White disparities in LYADC were explained by early young adult income trajectories, whereas Latino-White disparities in the same were explained by both early young adult income trajectories and early education. In controlled models, more LYADC predicted a higher likelihood of membership in the persistently low (vs. stable middle) income trajectory class in early midlife. CONCLUSIONS: This study found that poorer SES in early adulthood contributes to alcohol dependence, which reciprocally contributes to poorer SES in early midlife. This cycle appears particularly likely to affect Black and US-born Latino men. Results underline the need to address socioeconomic factors in addressing racial/ethnic disparities in alcohol problems.