摘要：研究人员正在研究大麻的合法供应如何影响参与者的消费和心理健康。在第一个学术出版物中，研究小组现在报告了该物质法律与非法采购的直接比较。...
As part of the Weed Care study, researchers in Basel, Switzerland, are investigating how the legal supply of cannabis affects consumption and mental health among participants.在第一个学术出版物中，研究小组现在报告了该物质法律与非法采购的直接比较。
在瑞士和其他几个国家，有关使用合法化的辩论已经进行了多年。它们是由各种希望和关注所塑造的。 On the one hand, there are the aims of curbing the black market, making it easier for consumers to access safer products, facilitating access to counseling, and promoting lower-risk consumption. On the other hand, there are fears that legal sales could normalize consumption, possibly even encouraging it and leading to more cases of addiction and mental disorders.
An interdisciplinary research team aims to provide a scientific basis for the debate: The Weed Care study started in January 2023 as a collaboration of the Addiction Department of the Department of Health of the Canton of Basel-Stadt, the University of Basel, the University Psychiatric Clinics Basel (UPK) and Psychiatric Services Aargau.
第一个学术设计的研究
During the first six months, the study design allowed for a direct comparison of two randomized groups: half of the approximately 370 participants were able to buy legal cannabis in one of the nine participating pharmacies and were offered counseling in the process.作为对照组，另一半继续将黑市作为来源。参与者会定期通过问卷调查报告他们的消费和精神状态。
"There has never been a controlled, randomized study like this before," emphasizes Dr. Lavinia Baltes-Flückiger, deputy head of the study at the Psychiatric Services Aargau and lead author of the study, which has now been published.先前的结果基于纯观察性研究。
有问题的消费下降
随着科学期刊成瘾中的团队报告，由于合法获取的机会，该小组中有问题的消费略有下降。 Consumption is considered problematic if it causes or exacerbates health, social or psychological difficulties -- even without dependency in the classic sense.
特别是，除了之外使用其他药物的人，通过法律获取会产生更大的积极影响。 Baltes-Flückiger说：“在这个亚组中，有问题的使用大幅下降。”
Furthermore, the study was able to dispel fears that legalization could exacerbate the psychopathological symptoms associated with cannabis consumption in addition to consumption itself: after the first six months, there was no difference between the two study groups in terms of depression, anxiety or other symptoms.
After this period, the control group, which had previously obtained cannabis on the black market, also obtained legal access to the substance through one of the participating pharmacies.根据Baltes-Flückiger的说法，他们在研究开始时就确保了这一点，以此作为参与的动力。
The interim assessment after two years of study shows a significant improvement in the mental state of the approximately 300 or so participants who are still taking part. "Legal access eases the burden on consumers," explains head of the study Professor Marc Walter from the University of Basel and Psychiatric Services Aargau.
