PREP advertisement features affect smokers' beliefs regarding potential harm.
BACKGROUND
The Institute of Medicine report on potential reduced exposure products (PREPs) recommends that advertising and labelling be regulated to prevent explicitly or implicitly false or misleading claims. Belief that a product is less harmful may increase use or prevent smoking cessation.


OBJECTIVE
To determine the effect of altering advertisement features on smokers' beliefs of the harm exposure from a PREP.


METHODS
A Quest advertisement was digitally altered using computer software and presented to participants using web-based television recruitment contracted through a survey company. 500 current smokers completed demographic and smoking history questions, were randomised to view one of three advertisement conditions, then completed eight items assessing their beliefs of the harmfulness of the product. Advertisement conditions included the original, unaltered advertisement; a "red" condition where the cigarette packages were digitally altered to the colour red, implying increased harm potential; and a "no text" condition where all text was removed to reduce explicit product information. Polytomous logistic regression, using "incorrect," "unsure" and "correct" as outcomes, and advertisement type and covariates as predictors, was used for analyses.


RESULTS
Participants randomised to the "no text" advertisement were less likely to be incorrect in their beliefs that Quest cigarettes are lower in tar, less addictive, less likely to cause cancer, have fewer chemicals, are healthier and make smoking safer.


CONCLUSIONS
Smokers can form false beliefs about the harmfulness of PREP products based on how the PREPs are marketed. Careful examination must be undertaken to provide empirical evidence to better formulate regulatory principles of PREP advertising.
Strasser
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Transdisciplinary Tobacco Use Research Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. strasse3@mail.med.upenn.edu
Tang
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Tuller
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Cappella
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