Wichaidit Wit, Chapakiya Ilham, Waeuseng Aneesah, Chumchuen Kemmapon, Assanangkornchai Sawitri
Department of Epidemiology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla Province, Thailand.
Centre for Alcohol Studies, Hat Yai, Songkhla Province, Thailand.
PeerJ. 2024 Apr 29;12:e17317. doi: 10.7717/peerj.17317. eCollection 2024.
Thailand recently decriminalized ( legalized) cannabis use and sales. However, nationally representative data are scarce with regard to cannabis use behaviors and its association with cannabis outlet density. The objectives of this study are: (1) to describe the prevalence of cannabis use behaviors and cannabis use disorder among the general adult population of Thailand; (2) to describe the extent that the density of cannabis outlets is associated with cannabis use behaviors, cannabis use disorder, and the amount of cannabis smoked per day.
We conducted a community-based cross-sectional study in 11 provinces and the Bangkok Metropolitan Area. Participants were residents of sampled communities aged 20 years or older. We requested literate participants to self-administer the questionnaire and interviewed participants who could not read. We analyzed data using descriptive statistics with sampling weight adjustments and multivariate logistic regression analyses.
The prevalence of current cannabis use was 15 percent. At a 400-m radius, participants who reported three cannabis outlets had 4.2 times higher odds of being current users than participants who reported no outlet (Adjusted OR = 4.82; 95% CI [3.04-7.63]). We found no association between outlet density and hazardous cannabis use or cannabis use disorder, nor association with the amount of cannabis use among cannabis smokers.
The patterns of association between outlet density and cannabis use behaviors were inconsistent. Furthermore, limitations regarding outlet density measurement and lack of temporality should be considered as caveats in the interpretation of the study findings.
泰国最近将大麻使用和销售合法化。然而，关于大麻使用行为及其与大麻销售点密度之间的关联，全国代表性数据稀缺。本研究的目的是：（1）描述泰国普通成年人群中大麻使用行为和大麻使用障碍的患病率；（2）描述大麻销售点密度与大麻使用行为、大麻使用障碍以及每日大麻吸食量之间的关联程度。
我们在11个省份和曼谷都会区开展了一项基于社区的横断面研究。参与者为年龄在20岁及以上的抽样社区居民。我们要求识字的参与者自行填写问卷，并对不识字的参与者进行访谈。我们使用带有抽样权重调整的描述性统计和多变量逻辑回归分析来分析数据。
当前大麻使用者的患病率为15%。在半径400米范围内，报告有三个大麻销售点的参与者成为当前使用者的几率是报告没有销售点的参与者的4.2倍（调整后的比值比=4.82；95%置信区间[3.04 - 7.63]）。我们发现销售点密度与危险大麻使用或大麻使用障碍之间没有关联，也与大麻吸烟者的大麻使用量没有关联。
销售点密度与大麻使用行为之间的关联模式并不一致。此外，在解释研究结果时，应将销售点密度测量的局限性和缺乏时间顺序视为注意事项。
