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Smoking ban in vehicles has led to 72% reduction in teen smoke exposure

Banning smoking in private vehicles carrying children has been linked to 72% fall in teens’ tobacco smoke exposure in England and a likely improvement in health.

Banning smoking in private vehicles carrying children has been linked to 72% fall in teens’ tobacco smoke exposure and a likely improvement in health.

The analysis of survey data was published online in the journal Thorax. Exposure to secondhand tobacco smoke is a significant cause of illness in children and particularly affects more disadvantaged groups.

The legislation was introduced in England in October 2015 and in Scotland in December 2016, with the aim of cutting children’s (under 18s) exposure to the harms of secondhand tobacco smoke, to which they are especially vulnerable.

The researchers drew on survey data for three years for both countries to assess the impact of the ban in England. The data for England came from the Smoking, Drinking and Drug Use (SDDU) surveys for 2012, 2014, and 2016, while the information for Scotland came from the Scottish Health Survey.

Researchers focused on 13-15 year olds to avoid issues with parents reporting answers for younger children, potentially compromising the accuracy of the data. Children were asked how often, over the past year, they had travelled in a car with an adult who smoked during the journey. 

Reductions in exposure will result in improved health

Some 15,318 responses were received for teens in England, and 822 for their peers in Scotland. The proportion of children exposed to secondhand tobacco smoke in Scotland fell from 3.4% in 2012 to 2.2% in 2014, and to 1.3% in 2016.

The equivalent figures for England were 6.3% and 5.9% before the ban took effect and 1.6% after it came into force, representing an absolute reduction of 4.1% and a fall of 72% when compared with the period before the ban.

Girls and those from areas of higher deprivation, as assessed by an amalgam of measures, were more likely to report secondhand tobacco smoke exposure in a car, prompting the researchers to highlight that this €œserves as a reminder of the socially patterned risks of smoking.€

The researchers said: €œThe design permits observed changes to be plausibly ascribed to the policy intervention. Our results suggest that banning smoking in private vehicles carrying children has been successful in its main aim of reducing their exposure to tobacco smoke. Given children’s known vulnerability to secondhand smoke, reductions in exposure will probably result in improved health.€

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