The current study examined the prevalence of alcohol, cigarette, and cannabis co-use among a longitudinal cohort of youth predominately born to single-parent families. Data were drawn from wave six of the Fragile Families and Child Wellbeing Study (N = 2976; M_age = 15.6; 49% female; 53% non-Hispanic Black, 27% Hispanic, 20% White). Adolescents’ reports of their past 30-day use of alcohol, cigarettes, and cannabis were used to construct eight mutually exclusive use groups. Multinomial logistic regressions adjusting for sociodemographic factors revealed that Black adolescents were at lower relative risk of using Alcohol Only compared to White adolescents. Black males were at greater relative risk of using Cannabis Only than both White males and Black females. Finally, Hispanic males were at a marginally increased relative risk of co-using Alcohol and Cannabis compared to White males. Prevention efforts targeting Black and Hispanic males’ use of cannabis (both alone and in combination with alcohol) may be beneficial.

目前的研究调查了主要出生于单亲家庭的纵向青年队列中同时使用酒精、香烟和大麻的流行情况。数据来自脆弱家庭和儿童福利研究的第六波（N = 2976；M_年龄= 15.6; 49% 女性；53% 非西班牙裔黑人，27% 西班牙裔，20% 白人）。青少年关于他们过去 30 天使用酒精、香烟和大麻的报告被用来构建八个相互排斥的使用组。调整社会人口学因素的多项逻辑回归显示，与白人青少年相比，黑人青少年仅使用酒精的相对风险较低。与白人男性和黑人女性相比，黑人男性仅使用大麻的相对风险更大。最后，与白人男性相比，西班牙裔男性同时使用酒精和大麻的相对风险略有增加。针对黑人和西班牙裔男性使用大麻（单独和与酒精结合）的预防工作可能是有益的。