Pictorial cigarette pack warnings: a meta-analysis of experimental studies.

ABSTRACT:

Objective

To inform international research and policy, we conducted a meta-analysis of the experimental literature on pictorial cigarette pack warnings.

Data sources

We systematically searched 7 computerised databases in April 2013 using several search terms. We also searched reference lists of relevant articles.

Study selection

We included studies that used an experimental protocol to test cigarette pack warnings and reported data on both pictorial and text-only conditions. 37 studies with data on 48 independent samples (N=33,613) met criteria.

Data extraction and synthesis

Two independent coders coded all study characteristics. Effect sizes were computed from data extracted from study reports and were combined using random effects meta-analytic procedures.

SUBMITTER: Noar SM 

PROVIDER: S-EPMC4636492 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature