Wadsworth Elle, Schauer Gillian L, Hammond David
School of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada.
Canadian Centre on Substance Use and Addiction, Ottawa, ON, Canada.
Am J Drug Alcohol Abuse. 2022 Nov 2;48(6):701-711. doi: 10.1080/00952990.2022.2132507. Epub 2022 Oct 26.
As of 2022, all but two U.S. states with adult-use cannabis laws also allow home cultivation. Home cultivation has the potential to support or oppose public health measures, and research in U.S. states is nascent. 1) estimate the percentage of respondents who reported growing cannabis plants; 2) estimate the average number of plants grown; 3) examine the association between home cultivation, jurisdiction, and individual-level factors; and 4) examine the association between home cultivation and state-level policies in adult-use states. Repeat cross-sectional survey data come from U.S. respondents aged 21-65 in 2019 and 2020. Respondents were recruited through online commercial panels. Home cultivation rates were estimated among all U.S. respondents (n = 51,503; 46-52% male). Additional analyses were conducted on a sub-sample of respondents in states that allowed adult-use home cultivation (n = 29,100; 50% male). A total of 6.8% and 7.3% of U.S. respondents reported home cultivation in 2019 and 2020, respectively. Respondents in states that allowed adult-use home cultivation had higher odds of reporting home cultivation than respondents in states without medical or adult-use cannabis laws (AOR = 1.48, 95% 1.26, 1.75). Among respondents in states that allowed adult-use home cultivation, the median number of plants that respondents reported growing was below state cultivation limits. Home cultivation rates in the U.S. were higher in states that allowed adult-use home cultivation; however, other evidence suggests these same states had higher rates predating adult-use legalization. Further work is needed to examine how home cultivation relates to public health measures in adult-use states.
截至2022年，除了两个州外，美国所有实施成人用大麻法律的州也允许家庭种植大麻。家庭种植大麻有可能支持或反对公共卫生措施，而美国各州在此方面的研究尚处于起步阶段。1）估计报告种植大麻植株的受访者比例；2）估计平均种植植株数量；3）研究家庭种植、司法管辖区和个人层面因素之间的关联；4）研究成人用大麻合法州的家庭种植与州级政策之间的关联。重复横断面调查数据来自2019年和2020年年龄在21至65岁之间的美国受访者。受访者通过在线商业面板招募。在美国所有受访者（n = 51,503；46 - 52%为男性）中估计家庭种植率。对允许成人用大麻家庭种植的州的受访者子样本（n = 29,100；50%为男性）进行了额外分析。2019年和2020年分别有6.8%和7.3%的美国受访者报告有家庭种植大麻的情况。与没有医用或成人用大麻法律的州的受访者相比，允许成人用大麻家庭种植的州的受访者报告家庭种植的几率更高（调整后比值比 = 1.48，95%置信区间为1.26至1.75）。在允许成人用大麻家庭种植的州的受访者中，受访者报告种植的植株中位数低于该州的种植限制。在美国，允许成人用大麻家庭种植的州的家庭种植率更高；然而，其他证据表明，这些州在成人用大麻合法化之前家庭种植率就更高。需要进一步开展工作来研究家庭种植与成人用大麻合法州的公共卫生措施之间的关系。
