BACKGROUND Cannabis is the most widely used illicit substance by Australian young people, including those engaged with youth alcohol and other drug (AOD) systems. While recreational cannabis use in young people may be a developmental activity for some, for others, this usage becomes regular and be associated with poorer long term outcomes. This study reports on the rates of cannabis use and co-existing psychosocial complexity factors in the Youth Needs Census (2013 and 2016) where workers report on all clients in the youth AOD system, a cohort considered highly vulnerable. METHODS Data was examined for two rounds of data collection for the Youth Needs Census, including 823 youth AOD service engaged young people in 2016 and 1000 AOD service engaged young people in 2013, to identify usage rates, psychosocial outcomes, and changes over time. RESULTS Daily use of cannabis alone significantly exceeded daily usage rates for methamphetamines, alcohol, and cannabis used alongside other substances. Daily cannabis use was significantly associated with mental health problems, employment problems, education problems, family problems, and housing problems. Daily cannabis use was associated with most psychosocial complexity factors to the same extent as daily methamphetamine use and daily alcohol use, with daily cannabis users only showing lower incidence of the drug-related harm measure. Notably, daily cannabis use also increased from 2013 (47.5%) to 2016 (54.2%). CONCLUSIONS It is imperative that the number of individuals using cannabis is considered alongside the severity of harm when assessing the social impact of this substance. Within cannabis users engaged with the youth AOD system, who often have high levels of psychosocial complexity, cannabis is used daily by a large proportion of these youths and may play a role in negatively impacting their lives.

中文翻译：

---

在青年AOD治疗中评估每日大麻与酒精和甲基​​苯丙胺对年轻澳大利亚人的影响。

背景技术大麻是澳大利亚年轻人中使用最广泛的非法物质，包括那些与青年酒精和其他毒品（AOD）系统接触的人。虽然年轻人中的休闲大麻使用可能是某些人的发展活动，但对于另一些人来说，这种使用却变得很规律，并与较差的长期结果相关。这项研究报告了青年需求人口普查（2013年和2016年）中大麻的使用率和共存的社会心理复杂性因素，其中工人报告了青年AOD系统中的所有客户，该群体被视为极度脆弱。方法对青年需求普查的两轮数据收集进行了调查，包括2016年的823名AOD服务参与的年轻人和2013年的1000名AOD服务参与的年轻人，以确定使用率，社会心理结果和随时间的变化。结果单独使用大麻的每日使用量大大超过了与其他物质一起使用的甲基苯丙胺，酒精和大麻的每日使用率。每天使用大麻与精神健康问题，就业问题，教育问题，家庭问题和住房问题显着相关。每天使用大麻与大多数社会心理复杂性因素相关联，其程度与每天使用甲基苯丙胺和每天饮酒相同，而每天使用大麻的人与毒品有关的危害衡量标准的发生率较低。值得注意的是，每天的大麻使用量也从2013年（47.5％）增加到2016年（54.2％）。结论在评估大麻的社会影响时，必须考虑使用大麻的人数以及危害的严重性。在使用青年AOD系统的大麻使用者中，