Pictorial Warning Labels, Numeracy, and Memory for Numeric Cigarette Health-risk Information Over Time
2 other identifiers
interventional
866
0 countries
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, or for numeric risks (e.g., percentage risk for developing lung cancer). This trial tests memory for numeric health risks immediately or after a six-week delay for US adult smokers. In addition, the trial tests the effects of different warning label components (e.g., whether the numeric risks are percentage or frequency), participants' level of numeric ability, and the consequences of memory for numeric risks on participant risk perceptions and quit intentions.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Apr 2016
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 16, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 2, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
June 2, 2016
CompletedFirst Submitted
Initial submission to the registry
April 10, 2018
CompletedFirst Posted
Study publicly available on registry
April 18, 2018
CompletedApril 18, 2018
April 1, 2018
2 months
April 10, 2018
April 10, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
numeric risk recall
free recall for numeric risks presented in labels (e.g., \_\_\_\_% of smokers die before age 85), both for smokers and nonsmokers
immediately following last exposure or after 6-week delay
numeric risk recognition
Participants answered one multiple choice question about the numeric risk for smokers and nonsmokers (combined in one question) for each of the 8 outcomes that had been paired with the PWLs. For each question, there were four decoy responses.
immediately following last exposure or after 6-week delay
Secondary Outcomes (3)
smoking risk perceptions
immediately following last exposure or after 6-week delay
smoking risk knowledge
immediately following last exposure or after 6-week delay
quit intentions
immediately following last exposure or after 6-week delay
Study Arms (6)
Text-only PWL, immediate post
EXPERIMENTALExposure to 4 FDA-mandated warning labels and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered immediately following last exposure to warning labels
Text-only PWL, delay posttest
EXPERIMENTALExposure to 4 FDA-mandated warning labels and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered 6 weeks following last exposure to warning labels
Low-emot PWL, immed post
EXPERIMENTALExposure to 4 FDA-mandated warning labels paired with images that elicit little emotion and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered immediately following last exposure to warning labels
Low-emot PWL, delay posttest
EXPERIMENTALExposure to 4 FDA-mandated warning labels paired with images that elicit little emotion and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered 6 weeks following last exposure to warning labels
High-emot PWL, immed posttest
EXPERIMENTALExposure to 4 FDA-mandated warning labels paired with images that elicit high emotion and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered immediately following last exposure to warning labels
High-emot PWL, delay posttest
EXPERIMENTALExposure to 4 FDA-mandated warning labels paired with images that elicit high emotion and numeric risk information for 8 outcomes related to those warnings (2 outcomes for each PWL; half as percentage, half as frequency) Posttest measures (e.g., memory, risk perceptions, quit intentions) administered 6 weeks following last exposure to warning labels
Interventions
Eligibility Criteria
You may qualify if:
- at least 18 years old
- have smoked 100+ lifetime cigarettes
- currently smoke "every day" or "some days."
- US resident
You may not qualify if:
- have not ever smoked a cigarette
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Ohio State Universitylead
- University of Pennsylvaniacollaborator
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
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
April 10, 2018
First Posted
April 18, 2018
Study Start
April 16, 2016
Primary Completion
June 2, 2016
Study Completion
June 2, 2016
Last Updated
April 18, 2018
Record last verified: 2018-04