Predictive and External Validity of a Pre-Market Study to Determine the Most Effective Pictorial Health Warning Label Content for Cigarette Packages.
Nicotine Tob Res
; 18(5): 1376-81, 2016 May.
Article
em En
| MEDLINE
| ID: mdl-26377516
ABSTRACT
INTRODUCTION:
Studies examining cigarette package pictorial health warning label (HWL) content have primarily used designs that do not allow determination of effectiveness after repeated, naturalistic exposure. This research aimed to determine the predictive and external validity of a pre-market evaluation study of pictorial HWLs.METHODS:
Data were analyzed from (1) a pre-market convenience sample of 544 adult smokers who participated in field experiments in Mexico City before pictorial HWL implementation (September 2010); and (2) a post-market population-based representative sample of 1765 adult smokers in the Mexican administration of the International Tobacco Control Policy Evaluation Survey after pictorial HWL implementation. Participants in both samples rated six HWLs that appeared on cigarette packs, and also ranked HWLs with four different themes. Mixed effects models were estimated for each sample to assess ratings of relative effectiveness for the six HWLs, and to assess which HWL themes were ranked as the most effective.RESULTS:
Pre- and post-market data showed similar relative ratings across the six HWLs, with the least and most effective HWLs consistently differentiated from other HWLs. Models predicting rankings of HWL themes in post-market sample indicated (1) pictorial HWLs were ranked as more effective than text-only HWLs; (2) HWLs with both graphic and "lived experience" content outperformed symbolic content; and, (3) testimonial content significantly outperformed didactic content. Pre-market data showed a similar pattern of results, but with fewer statistically significant findings.CONCLUSIONS:
The study suggests well-designed pre-market studies can have predictive and external validity, helping regulators select HWL content.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Rotulagem de Produtos
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Produtos do Tabaco
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Prevenção do Hábito de Fumar
Tipo de estudo:
Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Nicotine Tob Res
Assunto da revista:
SAUDE PUBLICA
Ano de publicação:
2016
Tipo de documento:
Article