Rosen 2011.

Trial name or title	Project zero exposure
Methods	Three‐stage approach: Stage 1 is intervention development, stage 2 is intervention pilot, and stage 3 is a cluster RCT.
Participants	Parents who smoke with a child younger than 3 years of age
Interventions	Developing a theory‐based intervention based on social marketing ‐ try to convince to stop smoking, (or) stop smoking around the child. Will have group support sessions, feedback of biochemical result of child tobacco smoke exposure, project website, video simulation game, and study information given to the participant's physician
Outcomes	Child tobacco smoke exposure assessed by hair nicotine Parental report of child tobacco smoke exposure Adoption of voluntary home and car smoking bans Child respiratory symptoms Parental smoking cessation
Starting date	Unclear
Contact information	Dr. L. J. Rosen
Notes	Dr. Rosen contacted on 28 June 2017; study results not yet available