背景:大麻需求(即,相对值)通常被评估为大麻使用和后果的性状水平风险因素。这项研究检查了人内白天强度的变异性(即,以零成本消耗的金额)和Omax(即,最大大麻支出),并测试了需求将与日常大麻使用呈正相关的假设。
方法:报告过去一个月同时使用酒精和大麻的年轻人(n=85)完成了为期30天的两次每日调查。早上调查评估了前一天的大麻使用情况,晚上调查评估了当天的需求(即,强度,Omax)。多水平模型测试了强度和Omax对任何大麻使用和花卉使用频率和数量的日水平影响(即,克)。
结果:强度和Omax的变异性约为52%和46%,分别,是由于人内部的变化。在白天,更高的强度和Omax与使用大麻的可能性更高有关,无论配方如何;Omax特别与花的使用有关;强度与最高的使用量有关。在人的层面,只有Omax与花卉使用可能性有关,并且只有强度与跨天的花数量有关。
结论:大麻需求表现出日常变化,可以想象是对各种内部状态和外部因素的反应。强度和Omax与使用任何大麻的可能性增加有关,尤其是花,在白天的水平。总的来说,这些数据说明了简短的大麻需求措施的有效性和实用性,这可能被用来进一步了解大麻在细粒度水平上的强化价值。
BACKGROUND: Cannabis demand (i.e., relative value) is usually assessed as a trait-level risk-factor for cannabis use and consequences. This study examined within-person variability in day-level intensity (i.e., amount consumed at zero cost) and Omax (i.e., maximum cannabis expenditure) and tested hypotheses that demand would be positively associated with day-level cannabis use.
METHODS: Young adults (n=85) reporting past-month simultaneous alcohol and cannabis use completed two daily surveys for 30 days. Morning surveys assessed prior-day cannabis use and evening surveys assessed day-level demand (i.e., intensity, Omax). Multilevel models tested day-level effects of intensity and Omax on any cannabis use and flower use frequency and quantity (i.e., grams).
RESULTS: Approximately 52 % and 46 % of variability in intensity and Omax, respectively, was due to within-person change. At the day-level, higher intensity and Omax were associated with higher likelihood of any cannabis use, regardless of formulation; Omax was associated with use of flower in particular; and intensity was associated with the highest quantity of use. At the person-level, only Omax was associated with flower use likelihood, and only intensity was associated with flower quantity across days.
CONCLUSIONS: Cannabis demand demonstrated day-to-day variability, conceivably in response to various internal states and external factors. Intensity and Omax were related to elevated likelihood of using any cannabis, particularly flower, at the day-level. Overall, these data illustrate the validity and utility of brief cannabis demand measures, which might be used to further understand cannabis\' reinforcing value at a fine-grained level.