Recommended core items to assess e-cigarette use in population-based surveys.

摘要: A consistent approach using standardised items to assess e-cigarette use in both youth and adult populations will aid cross-survey cross-national comparisons of the effect (and tobacco) policies improve our understanding population health impact use. Focusing on behaviour, we propose a set items, discuss their utility potential adaptation, highlight constructs that researchers should avoid without further item development. Reliable valid strengthen emerging science inform knowledge synthesis for policy-making. Building informal discussions at series international meetings 65 experts from 15 countries, authors provide recommendations assessing relative perceived harm, device type, presence nicotine, flavours reasons We recommend eight core constructs: ever use, frequency former daily use; harm; type; primary flavour preference; nicotine; reason These be or minimally adapted policy context target population. Researchers prepared update as characteristics change. minimum is proposed encourage consensus around allow cross-jurisdictional behaviour. are starting point. recognise room continued improvement, welcome input users scientific colleagues.