Pictorial Warning Labels and Memory for Cigarette Health-risk Information Over Time

Phase 3

Completed

• Conditions: Smoking Cessation; Smoking, Cigarette

• Registration Number: NCT03375840
• Lead Sponsor: Ohio State University

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. This trial tests memory for health risks immediately or after a six-week delay for US-representative adult smokers, US-representative teen smokers/vulnerable smokers, and Appalachian-representative adult smokers. In addition, the trial tests the effects of different warning label components and the consequences of memory for labels on risk perceptions and quit intentions.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-04-17
• Primary Completion: 2016-01-27
• Study Completion: 2016-01-27
• Status Verified: 2017-12
• Study First Submitted: 2017-12-08
• Study First Submitted QC: 2017-12-12
• Last Update Submitted: 2017-12-12
• Study First Posted: 2017-12-18
• Last Update Posted: 2017-12-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 4424

Inclusion Criteria

• 19-65 years old (adult samples)
• have smoked 100+ lifetime cigarettes (adult samples)
• currently smoke "every day" or "some days." (adult samples)
• 14-18 years old (teen sample)
• have ever smoked a cigarette (teen sample)

Exclusion Criteria

• have not ever smoked a cigarette (all samples)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Primary Outcome Measures

Name	Time	Method
graphic warning label recall	immediately following last exposure or after 6-week delay	free recall for risk information presented in labels (9 text boxes, 1 for each label; coded for exact or equivalent words)
smoking risk recognition	immediately following last exposure or after 6-week delay	Participants were subsequently shown twenty-six negative health effects and asked "Which of the following health effects were mentioned in the warnings we showed you?" and responded "Yes, I saw this health effect" or "No, I did not see this health effect." Fourteen risks were mentioned in the warnings (e.g., cancer, harms children, emphysema); six were risks of smoking not presented in the warnings (e.g., wrinkles, diabetes), and six were not risks of smoking (e.g., acne, thyroid problems).

Secondary Outcome Measures

Name	Time	Method
smoking risk perceptions	immediately following last exposure or after 6-week delay	participants completed several scale items about how much risk they perceived smoking posed to them (e.g., "Compared to the average nonsmoker your age, gender, and race, how would you rate your chances of": 1) "getting a life threatening illness because of smoking," 2) "getting lung cancer," and 3) "dying at a younger age than average" (-3 = Much lower, +3 = Much higher))
quit intentions	immediately following last exposure or after 6-week delay	participants' intentions to quit smoking