Department of Health Psychology and Behavioral Medicine, University of Bern, Bern, Switzerland.
PLoS One. 2021 Mar 1;16(3):e0247387. doi: 10.1371/journal.pone.0247387. eCollection 2021.
Given the constant high prevalence of cannabis use and cannabis dependence, it is important to determine protective behaviors on the individual level, which buffer the effects of risk factors. Protective Behavioral Strategies for Marijuana (PBSM) have been identified to play an important role for harm reduction in adolescent and young adult users. In the present study, we analyzed if PBSM moderate the effects of use motives (captured by the Marijuana Motives Measure, MMM) on the severity of dependence beyond the effects of age, gender, education and cannabis use frequency. We used confirmatory factor analysis (CFA) to validate the German versions of PBSM and MMM. Data was gathered in an online survey distributed to randomly chosen households in the city of Bern in the German speaking part of Switzerland. The final sample comprised 362 past-month users. Results showed negative correlations between PBSM and cannabis use frequency and severity of dependence. The only motives being correlated with severity of dependence were coping and routine, beyond frequency of use. PBSM significantly moderated the effect only of routine motives on the severity of dependence. However, only a few cases who used PBSM extensively were affected. PBSM appear to be an important factor to reduce harm among past-month users but not among those with dependent use patterns, e.g. coping and routine users. Clinical implications are discussed. The routine factor adds significantly to the MMM and should be implemented and improved in future studies. PBSM as well as the MMM can be used in future studies in German speaking populations.
鉴于大麻使用和大麻依赖的持续高流行率，确定个体层面的保护行为以缓冲风险因素的影响非常重要。保护性行为策略对于青少年和年轻成人使用者的伤害减少起着重要作用。在本研究中，我们分析了 PBSM 是否可以调节使用动机（由大麻动机量表，MMM 捕获）对依赖严重程度的影响，超过年龄、性别、教育和大麻使用频率的影响。我们使用验证性因子分析（CFA）来验证 PBSM 和 MMM 的德语版本。数据是通过在瑞士德语区伯尔尼市随机选择的家庭进行在线调查收集的。最终样本包括 362 名过去一个月的使用者。结果表明，PBSM 与大麻使用频率和依赖严重程度呈负相关。与依赖严重程度相关的唯一动机是应对和常规，除了使用频率之外。PBSM 仅显著调节常规动机对依赖严重程度的影响。然而，只有少数广泛使用 PBSM 的病例受到影响。PBSM 似乎是减少过去一个月使用者伤害的一个重要因素，但对于依赖使用模式的使用者，例如应对和常规使用者，则不然。讨论了临床意义。常规因素大大增加了 MMM，应在未来的研究中实施和改进。PBSM 以及 MMM 可用于德语人群的未来研究。
