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

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The Ohio State University

Status

Completed

Conditions

Smoking, Cigarette
Smoking Cessation

Treatments

Behavioral: low-emot PWL
Behavioral: immed posttest
Behavioral: delay posttest
Behavioral: high-emot PWL
Behavioral: text-only PWL

Study type

Interventional

Funder types

Other

Identifiers

NCT03501472
P50CA180908A2b
P50CA180908 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

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.

Enrollment

866 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

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

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Factorial Assignment

Masking

Double Blind

866 participants in 6 patient groups

Text-only PWL, immediate post
Experimental group
Description:
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
Treatment:
Behavioral: text-only PWL
Behavioral: immed posttest
Text-only PWL, delay posttest
Experimental group
Description:
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
Treatment:
Behavioral: text-only PWL
Behavioral: delay posttest
Low-emot PWL, immed post
Experimental group
Description:
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
Treatment:
Behavioral: immed posttest
Behavioral: low-emot PWL
Low-emot PWL, delay posttest
Experimental group
Description:
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
Treatment:
Behavioral: delay posttest
Behavioral: low-emot PWL
High-emot PWL, immed posttest
Experimental group
Description:
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
Treatment:
Behavioral: high-emot PWL
Behavioral: immed posttest
High-emot PWL, delay posttest
Experimental group
Description:
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
Treatment:
Behavioral: high-emot PWL
Behavioral: delay posttest

Trial contacts and locations

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Data sourced from clinicaltrials.gov

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