The relationship between time spent on social media and adolescent cigarette, E-cigarette, and dual use : a longitudinal analysis of the UK millennium cohort study

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Purba, Amrit Kaur and Henderson, Marion and Baxter, Andrew and Pearce, Anna and Katikireddi, S Vittal (2024) The relationship between time spent on social media and adolescent cigarette, E-cigarette, and dual use : a longitudinal analysis of the UK millennium cohort study. Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco. ISSN 1469-994X (https://doi.org/10.1093/ntr/ntae057)

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Abstract

To estimate the effect of social media use in 14 year olds on risk of and inequalities in cigarette, e-cigarette, and dual use at 17 years, using the UK-representative Millennium Cohort Study (born 2000-2002). The relationship of time spent on social media (using questionnaires [n = 8987] and time-use-diaries [n = 2520]) with cigarette, e-cigarette, and dual use was estimated using adjusted odds ratios (AORs) or relative risk ratios (ARRRs). Effect modification was examined (using parental education as an indicator for socioeconomic circumstances) by comparing adjusted risk differences within low and high-parental education groups. Analyses accounted for prespecified confounders (identified via directed acyclic graphs), baseline outcome measures (to address reverse causality), sample design, attrition, and item-missingness (through multiple imputation). Time spent on social media was associated with increased risk of cigarette, e-cigarette, and dual use in a dose-response manner. Social media use for ≥2 hours/day (vs. 1-

ORCID iDs

Purba, Amrit Kaur, Henderson, Marion ORCID logoORCID: https://orcid.org/0000-0001-7582-9516, Baxter, Andrew, Pearce, Anna and Katikireddi, S Vittal;
CORE (COnnecting REpositories)