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

NCT03500965 | Completed DMC

• 2 other identifiers: P50CA180908A2a-TP50CA180908
• Study Type: interventional
• Target: 422
• Locations: 0 countries
• Sites: N/A

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.

Conditions

Smoking Cessation; Smoking, Cigarette

Keywords

pictorial warning labels; risk knowledge; emotion; memory; risk perceptions; quit intentions

Outcome Measures

Primary Outcomes (1)

• numeric risk recognition

  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.

  measured immediately following last exposure

Secondary Outcomes (13)

• numeric risk recognition

  measured after 6-week delay

• relative risk recognition

  measured immediately following last exposure

• relative risk recognition

  measured after 6-week delay

• smoking risk perceptions

  measured immediately following last exposure

• smoking risk perceptions

  measured after 6-week delay

Study Arms (4)

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

Behavioral: text-only PWL; Behavioral: absolute risk

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

Behavioral: text-only PWL; Behavioral: relative risk

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

Behavioral: graphic PWL; Behavioral: absolute risk

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

Behavioral: graphic PWL; Behavioral: relative risk

Interventions

text-only PWL BEHAVIORAL

control condition (no image)

Text-only PWL, absol risk; text-only PWL, relative risk

graphic PWL BEHAVIORAL

pictorial warning

graphic PWL, absol risk; graphic PWL, relative risk

absolute risk BEHAVIORAL

Percentage risk information for smoking-related diseases for smokers

Text-only PWL, absol risk; graphic PWL, absol risk

relative risk BEHAVIORAL

Percentage risk information for smoking-related diseases for smokers and non-smokers

graphic PWL, relative risk; text-only PWL, relative risk

Eligibility Criteria

• Age: 14 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Ohio State University: lead
• University of Pennsylvania: collaborator

MeSH Terms

Conditions

Smoking Cessation; Cigarette Smoking

Interventions

Numbers Needed To Treat; Risk

Condition Hierarchy (Ancestors)

Health Behavior; Behavior; Tobacco Smoking; Smoking; Tobacco Use

Intervention Hierarchy (Ancestors)

Sample Size; Research Design; Methods; Investigative Techniques; Probability; Statistics as Topic; Epidemiologic Methods; Mathematical Concepts; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: February 14, 2018
• First Posted: April 18, 2018
• Study Start: May 25, 2016
• Primary Completion: January 9, 2018
• Study Completion: January 9, 2018
• Last Updated: April 18, 2018

Record last verified: 2018-04