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Clinical Trials/NCT03500965
NCT03500965CompletedNot Applicable

Pictorial Warning Labels and Memory for Relative and Absolute Cigarette Health-risk Information Over Time in Teens

Ohio State University0 sites422 target enrollmentStarted: May 25, 2016Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Completed
Enrollment
422
Primary Endpoint
numeric risk recognition

Study Overview

Brief Summary

Pictorial cigarette warning labels (PWLs) are thought to increase risk knowledge, but experimental research has not examined PWLs' longer term effects on memory for health risks. In this study, teens who have experimented with smoking or are considered vulnerable to smoking are repeatedly exposed to text-only vs. graphic warning labels paired with numeric risk information. This study will allow us to assess the extent to which reactions to warnings remain consistent over time and influence future smoking intentions. We will also assess the impact of graphic images on memory for smoking risk information presented in absolute and (a smokers lifetime risk of getting a smoking related disease), or relative (a smokers risk of getting a smoking related disease, compared to the risk of non-smokers) formats.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Factorial
Primary Purpose
Prevention
Masking
Double (Participant, Outcomes Assessor)

Eligibility Criteria

Ages
14 Years to 18 Years (Child, Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • have ever tried smoking
  • report vulnerability to smoking (i.e., report that they might smoke in the next year or would try a cigarette if a friend offered one)
  • parents give permission to participate

Exclusion Criteria

  • not vulnerable to smoking (i.e., report they will definitely not smoke a cigarette in the next year and definitely would not try a cigarette if one was offered
  • parents do not provide permission to participate

Arms & Interventions

Text-only PWL, absol risk

Experimental

Exposure to FDA-mandated warning labels, without a graphic image, accompanied by risk information about smoker's risk of a smoking-related disease

Intervention: text-only PWL (Behavioral)

Text-only PWL, absol risk

Experimental

Exposure to FDA-mandated warning labels, without a graphic image, accompanied by risk information about smoker's risk of a smoking-related disease

Intervention: absolute risk (Behavioral)

text-only PWL, relative risk

Experimental

Exposure to FDA-mandated warning labels, without a graphic image, accompanied by risk information about smoker's risk and non-smoker's risk of a smoking-related disease

Intervention: text-only PWL (Behavioral)

text-only PWL, relative risk

Experimental

Exposure to FDA-mandated warning labels, without a graphic image, accompanied by risk information about smoker's risk and non-smoker's risk of a smoking-related disease

Intervention: relative risk (Behavioral)

graphic PWL, absol risk

Experimental

Exposure to FDA-mandated warning labels, paired with a graphic image, accompanied by risk information about smoker's risk of a smoking-related disease

Intervention: graphic PWL (Behavioral)

graphic PWL, absol risk

Experimental

Exposure to FDA-mandated warning labels, paired with a graphic image, accompanied by risk information about smoker's risk of a smoking-related disease

Intervention: absolute risk (Behavioral)

graphic PWL, relative risk

Experimental

Exposure to FDA-mandated warning labels, paired with a graphic image, accompanied by risk information about smoker's risk and non-smoker's risk of a smoking-related disease

Intervention: graphic PWL (Behavioral)

graphic PWL, relative risk

Experimental

Exposure to FDA-mandated warning labels, paired with a graphic image, accompanied by risk information about smoker's risk and non-smoker's risk of a smoking-related disease

Intervention: relative risk (Behavioral)

Outcomes

Primary Outcomes

numeric risk recognition

Time Frame: measured immediately following last exposure

Participants answered one multiple choice question about the numeric risk for smokers for each label (e.g., ____% of smokers die before age 85). For each question, there were four decoy responses.

Secondary Outcomes

  • smoking risk perceptions(measured after 6-week delay)
  • risk recognition(measured after 6-week delay)
  • quit intentions (for next 30 days)(measured after 6-week delay)
  • numeric risk recognition(measured after 6-week delay)
  • quit intentions (for next year)(measured after 6-week delay)
  • relative risk recognition(measured after 6-week delay)
  • feelings about smoking(measured after 6-week delay)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Ellen Peters

Professor

Ohio State University

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