Changes in childhood experimentation with, and exposure to, tobacco and e-cigarettes and perceived smoking norms: a repeated cross-sectional study of 10-11 year olds' in Wales.

For both groups, odds ratios for contrasts between 2014 and 2019 were in the direction of continued lowering of the odds of ever smoking, though were of borderline significance for the whole sample only.

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greater tolerance) of others’ smoking over time, with contrasts of 2007 and 2008 with 2014 marginally significant, and further decline evident from 2014 to 2019, although smaller and not significant for children of smokers.

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