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

NCT ID: NCT03501472

Last Updated: 2018-04-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

866 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-04-16

Study Completion Date

2016-06-02

Brief Summary

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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.

Detailed Description

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Conditions

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Smoking, Cigarette Smoking Cessation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Text-only PWL, immediate post

Exposure 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

Group Type EXPERIMENTAL

text-only PWL

Intervention Type BEHAVIORAL

immed posttest

Intervention Type BEHAVIORAL

Text-only PWL, delay posttest

Exposure 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

Group Type EXPERIMENTAL

text-only PWL

Intervention Type BEHAVIORAL

delay posttest

Intervention Type BEHAVIORAL

Low-emot PWL, immed post

Exposure 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

Group Type EXPERIMENTAL

low-emot PWL

Intervention Type BEHAVIORAL

immed posttest

Intervention Type BEHAVIORAL

Low-emot PWL, delay posttest

Exposure 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

Group Type EXPERIMENTAL

low-emot PWL

Intervention Type BEHAVIORAL

delay posttest

Intervention Type BEHAVIORAL

High-emot PWL, immed posttest

Exposure 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

Group Type EXPERIMENTAL

high-emot PWL

Intervention Type BEHAVIORAL

immed posttest

Intervention Type BEHAVIORAL

High-emot PWL, delay posttest

Exposure 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

Group Type EXPERIMENTAL

high-emot PWL

Intervention Type BEHAVIORAL

delay posttest

Intervention Type BEHAVIORAL

Interventions

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text-only PWL

Intervention Type BEHAVIORAL

low-emot PWL

Intervention Type BEHAVIORAL

high-emot PWL

Intervention Type BEHAVIORAL

immed posttest

Intervention Type BEHAVIORAL

delay posttest

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* at least 18 years old
* have smoked 100+ lifetime cigarettes
* currently smoke "every day" or "some days."
* US resident

Exclusion Criteria

* have not ever smoked a cigarette
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Pennsylvania

OTHER

Sponsor Role collaborator

Ohio State University

OTHER

Sponsor Role lead

Responsible Party

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Ellen Peters

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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P50CA180908

Identifier Type: NIH

Identifier Source: secondary_id

View Link

P50CA180908A2b

Identifier Type: -

Identifier Source: org_study_id

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