Effect of Pictorial Cigarette Pack Warnings on Changes in Smoking Behavior: A Randomized Clinical Trial.

ABSTRACT:

Importance

Pictorial warnings on cigarette packs draw attention and increase quit intentions, but their effect on smoking behavior remains uncertain.

Objective

To assess the effect of adding pictorial warnings to the front and back of cigarette packs.

Design, setting, and participants

This 4-week between-participant randomized clinical trial was carried out in California and North Carolina. We recruited a convenience sample of adult cigarette smokers from the general population beginning September 2014 through August 2015. Of 2149 smokers who enrolled, 88% completed the trial. No participants withdrew owing to adverse events.

Interventions

We randomly assigned participants to receive on their cigarette packs for 4 weeks either text-only warnings (one of the Sur

SUBMITTER: Brewer NT 

PROVIDER: S-EPMC5458743 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature