Media release

From: The University of Sydney

Australia’s progress in reducing teen smoking slowed as vaping increased

New research from the Daffodil Centre, a joint venture between Cancer Council NSW and the University of Sydney, reveals that Australia’s progress in reducing adolescent smoking has slowed since about 2010, and vaping may be the reason.

The study, published in the Medical Journal of Australia, conducted prior to the current policy approach on vaping, analysed population-level data from more than 170,000 students aged 12–17 surveyed between 1999 and 2022/23 as part of the Australian Secondary Students’ Alcohol and Drug (ASSAD) survey.

Researchers compared smoking trends from 1999–2009, when vaping was rare or non-existent in Australia, with those from 2010–2022/23 when e-cigarettes emerged, becoming widely used. They examined five key behaviours: ever, past year, past month, past week, and daily smoking.

Sam Egger, Lead author and Statistician at the Daffodil Centre said that while smoking continued to decline after 2010, the rate of decline slowed significantly across all five behaviours from 2010 onwards, coinciding with the emergence and rise of vaping in Australia.

The study challenges a common misconception that if vaping was truly causing more teens to smoke, youth smoking rates would be going up, “we often hear that if vaping caused teens to smoke, we should be seeing smoking rates rise,” explained Mr Egger, “but that’s a misunderstanding. If vaping is leading more teens to smoke, we wouldn’t necessarily see smoking rates rise. We’d more likely see smoking rates continue to fall, but at a slower pace than before vaping became available.” he said.

The study showed that 13.2% of 12-17 year olds had tried smoking by 2022/23. But if the pre-2010 smoking trend had continued, that number would have been just 5.8%.

Co-author on the study Professor Becky Freeman from the University of Sydney and Chief Investigator of the Generation Vape research project, said the findings contradict claims that vaping may be accelerating the decline in teen smoking, “some have claimed that vaping is helping to drive teen smoking rates down faster, but our study found the opposite. Yes, smoking rates are falling — but they are falling more slowly than they were before vaping became common. That’s a real concern given how much progress had been made prior to e-cigarettes becoming available.” she said.

This study is the first in Australia to examine whether the rise of vaping may have affected teen smoking at the population-level. The findings reinforce the team’s 2024 results from the Generation Vape study, which showed that adolescents who had vaped were more likely to go on to try smoking than those who had not. That earlier study was the first in Australia to demonstrate this link.

“These results reinforce what many public health experts have feared: vaping isn’t helping kids avoid smoking — it appears to be derailing our progress,” Said Anita Dessaix, co-author and Chair of Cancer Council’s Public Health Committee, “Australia’s longstanding approach to tobacco control, helped to lessen the impact of vaping on smoking uptake, but we can’t stop yet.

“It’s important to note that our analysis is based on data collected before the 2024 vaping reforms came into effect. Now that those reforms are in place, we need strong, coordinated enforcement to make sure they work to protect the health of young people. We are committed to supporting the strong action taken by the Commonwealth

Government to regulate the sales of vapes and e-cigarettes,” Ms Dessaix concluded.

The findings are consistent with those of a recent New Zealand analysis by the same research team, published in The Lancet Regional Health – Western Pacific. That study also found that progress in reducing teen smoking slowed after 2010, following the emergence and rise of vaping in New Zealand.

“The pattern of slowing progress in reducing adolescent smoking following the emergence of vaping in both Australia and New Zealand is similar in a manner that seems unlikely to be a coincidence,” Mr Egger concluded.

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