This study examines whether parental marijuana use that occurs during the life of a child impacts patterns of continuity and discontinuity in adolescent substance use among father-child dyads. The study uses data from 263 father-child-mother triads involved in the Rochester Youth Development Study (RYDS) and the Rochester Intergenerational Study (RIGS). We use a dual trajectory model to examine the research questions. Results suggest that both paternal and maternal marijuana use during the child’s life increase the probability that a child will follow a moderate or high substance use trajectory during adolescence, beyond the risk incurred from paternal adolescent history of substance use. Some nuances related to the timing of concurrent parental marijuana use emerge across parent sex. The results highlight the important role of both caregivers in the explanation of patterns of discontinuity across generations, as well as the relevance of considering when the use occurred.

本研究调查了父母在孩子一生中使用大麻是否会影响父子二人组青少年物质使用的连续性和不连续性模式。该研究使用了参与罗切斯特青年发展研究 (RYDS) 和罗切斯特代际研究 (RIGS) 的 263 名父亲-孩子-母亲三合会的数据。我们使用双轨迹模型来检查研究问题。结果表明，父亲和母亲在孩子的一生中使用大麻都会增加孩子在青春期遵循中度或高度药物使用轨迹的可能性，这超出了父亲青少年药物使用史所带来的风险。与父母同时使用大麻的时间相关的一些细微差别出现在父母性别中。