van Laar Margriet W, Oomen Pieter E, van Miltenburg Charlotte J A, Vercoulen Eefje, Freeman Tom P, Hall Wayne D
Trimbos Institute, The Netherlands Institute of Mental Health and Addiction, Utrecht, Netherlands.
Addiction and Mental Health Group (AIM), Department of Psychology, University of Bath, Bath, United Kingdom.
Front Psychiatry. 2020 Dec 21;11:601653. doi: 10.3389/fpsyt.2020.601653. eCollection 2020.
The lockdown measures implemented to curb the spread of SARS-CoV-2 may affect (illicit) drug consumption patterns. This rapid response study investigated changes in cannabis use in a non-probability sample of cannabis users in the Netherlands during the early lockdown period. We fielded an online cross-sectional survey 4-6 weeks after implementation of lockdown measures in the Netherlands on March 15, 2020. We measured self-reported \motives for changes in use, and assessed cannabis use frequency (use days), number of joints per typical use day, and route of administration in the periods before and after lockdown implementation. 1,563 cannabis users were recruited. Mean age was 32.7 ± 12.0 years; 66.3% were male and 67.9% used cannabis (almost) daily. In total, 41.3% of all respondents indicated that they had increased their cannabis use since the lockdown measures, 49.4% used as often as before, 6.6% used less often, and 2.8% stopped (temporarily). One-third of those who were not daily users before the lockdown became (almost) daily users. Before the lockdown, most respondents (91.4%) used cannabis in a joint mixed with tobacco and 87.6% still did so. Among users of joints, 39.4% reported an increase in the average number consumed per use day; 54.2% stayed the same and 6.4% used fewer joints. This rapid response study found evidence that during the lockdown more users increased rather than decreased cannabis consumption according to both frequency and quantity. These data highlight the need to invest more resources in supporting cessation, harm reduction, and monitoring longer term trends in cannabis use.
为遏制SARS-CoV-2传播而实施的封锁措施可能会影响（非法）药物消费模式。这项快速反应研究调查了荷兰早期封锁期间大麻使用者非概率样本中大麻使用情况的变化。我们于2020年3月15日荷兰实施封锁措施后的4至6周进行了一项在线横断面调查。我们测量了自我报告的使用变化动机，并评估了封锁措施实施前后的大麻使用频率（使用天数）、每次典型使用日的卷烟数量以及给药途径。共招募了1563名大麻使用者。平均年龄为32.7±12.0岁；66.3%为男性，67.9%（几乎）每天使用大麻。总体而言，41.3%的受访者表示自封锁措施实施以来他们增加了大麻使用量，49.4%的人使用频率与以前相同，6.6%的人使用频率降低，2.8%的人停止（暂时）使用。在封锁前不是每日使用者的人群中，三分之一变成了（几乎）每日使用者。在封锁前，大多数受访者（91.4%）将大麻与烟草混合在卷烟中使用，87.6%的人在封锁后仍然如此。在卷烟使用者中，39.4%的人报告每次使用日的平均消费数量增加；54.2%的人保持不变，6.4%的人使用的卷烟减少。这项快速反应研究发现，有证据表明在封锁期间，根据频率和数量，更多使用者增加了而非减少了大麻消费。这些数据凸显了需要投入更多资源来支持戒烟、减少危害以及监测大麻使用的长期趋势。
