Has the introduction of plain packaging with larger graphic health warnings changed adolescents' perceptions of cigarette packs and brands?

Tob Control · 2015 · PMC4401345 · PMID 28407611

Europe PMC DOI

hedged sentence

0.0540

closest p · 1.1× alpha

0.0540

boldest claim

The sentences

borderline significancep=0.054so close (0.05 < p ≤ 0.1)

The reduction in mean scores was generally similar among smoking status group for the four brands (no interaction between survey year and smoking status for Winfield, Peter Jackson, Benson and Hedges, borderline significance for Longbeach (p=0.054)).

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