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Message Source Credibility and E-Cigarette Harm Perceptions among Young Adults.

Donghee N Lee1, Elise M Stevens1

  • 1Department of Population and Quantitative Health Sciences, Division of Preventive and Behavioral Medicine, UMass Chan Medical School, Worcester, MA 01655, USA.

International Journal of Environmental Research and Public Health
|July 28, 2022
PubMed
Summary
This summary is machine-generated.

Young adults perceive expert sources as more credible than peers regarding electronic cigarette (e-cigarette) risks. This increased credibility enhances perceptions of e-cigarette harm, influencing public health messaging effectiveness.

Keywords:
communicationelectronic cigaretteshealth education messagingvaping

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Area of Science:

  • Public Health
  • Health Communication
  • Behavioral Science

Background:

  • E-cigarette use is a significant public health concern among young adults.
  • Understanding factors influencing harm perceptions is crucial for effective health communication.
  • Message source credibility is a key element in persuasion and attitude change.

Purpose of the Study:

  • To investigate the impact of message source credibility on e-cigarette harm perceptions in U.S. young adults.
  • To compare the effects of expert versus peer sources on harm perception.
  • To explore the mediating role of perceived source credibility.

Main Methods:

  • An online experimental study involving 302 U.S. young adults (mean age = 23.7).
  • Random assignment to receive an e-cigarette public health message from either an expert or a peer source.
  • Data collection on participants' perceptions of the message source and e-cigarettes.

Main Results:

  • Young adults rated expert sources as significantly more credible than peer sources.
  • Higher perceived credibility of the expert message was associated with increased e-cigarette harm perceptions.
  • Perceived source credibility mediated the relationship between message source and harm perception.

Conclusions:

  • Expert sources enhance message credibility, leading to greater perceived e-cigarette harm among young adults.
  • Message source credibility is a critical factor to consider in designing e-cigarette public health education campaigns.
  • Tailoring messages to leverage source credibility can improve the effectiveness of harm reduction strategies.