Effects of brief exposure to misinformation about e-cigarette harms on twitter: a randomised controlled experiment

Autor: Caroline F. Wright, Olga Elizarova, Jennifer Dahne, Philippa Williams, Andy S.L. Tan, Jian-Guo Bian, Yunpeng Zhao
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: BMJ Open, Vol 11, Iss 9 (2021)
BMJ Open
Wright, C L, Williams, P M, Elizarova, O, Dahne, J, Bian, J, Zhao, Y & Tan, A 2021, ' Effects of brief exposure to misinformation about E-cigarette Harms on Twitter a randomised controlled experiment ', BMJ Open, vol. 11, no. 9, e045445 . https://doi.org/10.1136/bmjopen-2020-045445
ISSN: 2044-6055
Popis: ObjectivesTo assess the effect of exposure to misinformation about e-cigarette harms found on Twitter on adult current smokers’ intention to quit smoking cigarettes, intention to purchase e-cigarettes and perceived relative harm of e-cigarettes compared with regular cigarettes.SettingAn online randomised controlled experiment conducted in November 2019 among USA and UK current smokers.Participants2400 adult current smokers aged ≥18 years who were not current e-cigarette users recruited from an online panel. Participants’ were randomised in a 1:1:1:1 ratio using a least-fill randomiser function.InterventionsViewing 4 tweets in random order within one of four conditions: (1) e-cigarettes are just as or more harmful than smoking, (2) e-cigarettes are completely harmless, (3) e-cigarette harms are uncertain, and (4) a control condition of tweets about physical activity.Primary outcomes measuresSelf-reported post-test intention to quit smoking cigarettes, intention to purchase e-cigarettes, and perceived relative harm of e-cigarettes compared with smoking.ResultsAmong US and UK participants, after controlling for baseline measures of the outcome, exposure to tweets that e-cigarettes are as or more harmful than smoking versus control was associated with lower post-test intention to purchase e-cigarettes (β=−0.339, 95% CI −0.487 to –0.191, pConclusionsUS and UK adult current smokers may be deterred from considering using e-cigarettes after brief exposure to tweets that e-cigarettes were just as or more harmful than smoking. Conversely, US adult current smokers may be encouraged to use e-cigarettes after exposure to tweets that e-cigarettes are completely harmless. These findings suggest that misinformation about e-cigarette harms may influence some adult smokers’ decisions to consider using e-cigarettes.Trial registration numberISRCTN16082420.
Databáze: OpenAIRE