Systematic Review of the Effect of Pictorial Warnings on Cigarette Packages in Smoking Behavior
A partir d'une revue sytématique de la littérature publiée entre 1993 et 2013 (21 articles), cette étude évalue l'intérêt des avertissements sanitaires graphiques imprimés sur les paquets de cigarettes pour inciter les fumeurs à arrêter de fumer
We used a structured approach to assess whether active smokers presented with pictorial warnings on cigarette packages (PWCP) had a higher probability of quitting, reducing, and attempting to quit smoking than did unexposed smokers.We identified 21 articles from among nearly 2500 published between 1993 and 2013, prioritizing coverage over relevance or quality because we expected to find only a few studies with behavioral outcomes. We found very large heterogeneity across studies, poor or very poor methodological quality, and generally null or conflicting findings for any explored outcome.The evidence for or against the use of PWCP is insufficient, suggesting that any effect of PWCP on behavior would be modest. Determining the single impact of PWCP on behavior requires studies with strong methodological designs and longer follow-up periods. (Am J Public Health. Published online ahead of print August 14, 2014: e1?e20. doi:10.2105/AJPH.2014.302129)