Are younger or older school students aged 12-17 years more likely to regularly use cannabis?

Among Australian school students aged 12-17 years, the likelihood of regular cannabis use increases with age.

1% of Australian school students aged 12 years are regular cannabis users. 1% of Australian school students aged 13 years are regular cannabis users. 2% of Australian school students aged 14 years are regular cannabis users. 4% of Australian school students aged 15 years are regular cannabis users. 7% of Australian school students aged 16 years are regular cannabis users. 8% of Australian school students aged 17 years are regular cannabis users.

Source: Cancer Council Victoria (2012). Australian secondary school students' use of tobacco, alcohol, and over-the-counter and illicit substances in 2011.

Please note: The proportion of school students who regularly use cannabis differs from the proportion of young people in the general population who regularly use cannabis (see FAQ Are younger or older Australians in the general population aged 12-17 years more likely to regularly use cannabis?). This is due to the use of different survey measures. In the school students’ survey (ASSAD), regular use is defined as using cannabis 10 or more times during the past year. By contrast, in the general population survey (NDSHS) regular use is defined as using cannabis 12 or more times during the past 12 months.

Regular Cannabis Use: Regular cannabis use refers to using cannabis 10 or more times in the past year (in the case of ASSAD data), or at least once per month or 12 times in the past year (in the case of NDSHS data).