Veterans Affairs Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, 2800 Plymouth Rd., Bldg. 16, Ann Arbor, MI 48109-2800, USA; Department of Psychiatry, University of Michigan, 2800 Plymouth Rd., Bldg. 16, Ann Arbor, MI 48109-2800, USA.
Department of Psychiatry, University of Michigan, 2800 Plymouth Rd., Bldg. 16, Ann Arbor, MI 48109-2800, USA.
Addict Behav. 2018 Jan;76:139-144. doi: 10.1016/j.addbeh.2017.08.001. Epub 2017 Aug 3.
Little is known about motives for cannabis use among the population of adults using cannabis medically. Therefore, we evaluated the performance of the 12 factor, 36-item Comprehensive Marijuana Motives Questionnaire (CMMQ) among a sample of medical cannabis patients.
Study participants were adults ages 21years or older with scheduled appointments to obtain new or renewed medical cannabis certification from clinics in one Midwestern state (n=1116). Confirmatory factor analysis was used to evaluate properties of the CMMQ. Multiple regressions were used to estimate associations between motives and cannabis use, physical health functioning, and mental health functioning.
Fit indices were acceptable, and factor loadings ranged from 0.57 to 0.94. Based on regression analyses, motives accounted for 7% of the variance in recent cannabis use, and independent of cannabis use, accounted for 5% and 19% of physical and mental health functioning, respectively. Regression analyses also revealed that distinct motives were associated with cannabis use and physical and mental health functioning.
Among adults seeking medical cannabis certification, the factor structure of the CMMQ was supported, and consistent with prior studies of adolescents and young adults using cannabis recreationally. Thus, individuals who use cannabis medically may have diverse reasons for use that extend beyond the management of medical symptoms. In addition, coping and sleep-related motives may be particularly salient for this population. Findings support the utility of the CMMQ in future research on medical cannabis use; however, expansion of the scale may be needed to address medical motives for use.
对于医学用途大麻使用者的群体，其使用大麻的动机鲜为人知。因此，我们评估了 12 因素 36 项综合大麻动机问卷（CMMQ）在一组医用大麻患者样本中的表现。
研究参与者为年龄在 21 岁及以上、在一个中西部州的诊所预约获得新的或更新的医用大麻认证的成年人（n=1116）。采用验证性因子分析评估 CMMQ 的特性。多元回归用于估计动机与大麻使用、身体健康功能和心理健康功能之间的关系。
拟合指数可接受，因子负荷在 0.57 到 0.94 之间。基于回归分析，动机解释了最近大麻使用的 7%的差异，且独立于大麻使用，分别解释了身体健康功能和心理健康功能的 5%和 19%的差异。回归分析还表明，不同的动机与大麻使用和身体健康功能和心理健康功能相关。
在寻求医用大麻认证的成年人中，CMMQ 的因素结构得到了支持，与青少年和年轻人娱乐性使用大麻的先前研究一致。因此，医用大麻使用者可能有多种使用原因，而不仅仅是为了控制医疗症状。此外，应对和睡眠相关的动机可能对这一人群特别重要。研究结果支持 CMMQ 在未来医用大麻使用研究中的应用；然而，可能需要扩展量表以解决使用大麻的医疗动机。
