Department of Health Education and Behavior, College of Health and Human Performance, University of Florida, Gainesville, FL, USA.
Department of Psychiatry, University of Missouri, Columbia, MO, USA.
J Sleep Res. 2020 Aug;29(4):e12985. doi: 10.1111/jsr.12985. Epub 2020 Jan 29.
Insomnia symptoms have been linked to problematic marijuana use among young adults, but the mechanism underlying this association and whether sex differences exist, remains unclear. Using cross-sectional data, this study examined negative mood as a mediator of the association between insomnia and marijuana problems among male and female college students. Undergraduate students (n = 267; 61% female) reporting marijuana use in the past month completed an online survey assessing insomnia symptoms, negative mood and marijuana problems. Controlling for relevant covariates, negative mood was examined as a mediator of the association between insomnia and marijuana problems using bootstrapped significance tests for indirect effects (n-boot = 1,000). Results indicated that higher levels of insomnia were associated with greater levels of negative mood (regardless of sex), which in turn were associated with greater marijuana-related problems. In conclusion, insomnia symptoms are associated with more negative mood among college students who use marijuana, and this effect on negative mood accounts for a large part of the association of insomnia symptoms with marijuana-related problems. Research is needed to determine if these associations are maintained prospectively.
失眠症状与年轻人中出现的大麻使用问题有关，但这种关联的潜在机制以及是否存在性别差异仍不清楚。本研究使用横断面数据，考察了消极情绪在失眠与大学生中大麻问题之间的关联中的中介作用，分别针对男性和女性大学生。报告过去一个月有大麻使用的大学生（n=267；61%为女性）完成了一项在线调查，评估了失眠症状、消极情绪和大麻问题。在控制了相关协变量后，使用间接效应的 bootstrap 显著性检验（n-boot=1,000）来检验消极情绪作为失眠与大麻问题之间关联的中介。结果表明，更高水平的失眠与更高水平的消极情绪（无论性别）相关，而消极情绪又与更大的大麻相关问题相关。总之，失眠症状与使用大麻的大学生的更多消极情绪有关，而这种对消极情绪的影响在很大程度上解释了失眠症状与大麻相关问题之间的关联。需要研究来确定这些关联是否可以前瞻性地维持。
