@article{ref1,
title="Age-related trends in cannabis use in Australia. Findings from a series of large nationally representative surveys",
journal="Addictive behaviors",
year="2021",
author="Chan, Gary and Chiu, Vivian and Sun, Tianze and Connor, Jason P. and Hall, Wayne D. and Leung, Janni",
volume="123",
number="",
pages="e107059-e107059",
abstract="AIM: We examine age-related trends in past-year cannabis use in a series of nationally representative surveys in Australia. <br><br>METHODS: We analysed data from the largest nationally representative survey in Australia collected between 2001 and 2019 (National Drug Strategy Household Survey [NDSHS]; N = 157,151). Prevalence of past-year daily/occasional (non-daily)/non-use of cannabis use were estimated using weighted multinomial logistic regression and predicted marginal probabilities. Difference-in-difference analysis was used to examine if trends of cannabis use across age groups were different. <br><br>RESULTS: The youngest age group (14-17 s) witnessed the largest increase in past-year abstinence rate from 79% to 92% from 2001 to 2019 (p < .003); the increase in abstinent rate among the 18-24 and 25-39 were relatively moderate (from 68 to 76% and from 81% to 84% respectively; p < .003). The abstinent rate among the 40-54 s and 55-74 s decreased significantly from 93% to 90% and from 99% to 95% respectively (p < .003). There were similar diverging trends in occasional and daily cannabis use, with decreases in both patterns of use observed among the younger age group (14-17 s and 18-25 s) but increases among the older age group (40-54 s and 55-74 s). <br><br>CONCLUSION: There is a diverging trend in cannabis use among younger and older age groups in Australia between 2001 and 2019. Cannabis use substantially decreased among the youngest age group (14-17 s) but modestly increased among older people (55-74 s).<p /> <p>Language: en</p>",
language="en",
issn="0306-4603",
doi="10.1016/j.addbeh.2021.107059",
url="http://dx.doi.org/10.1016/j.addbeh.2021.107059"
}