Trial name or title	Not stated.
Methods	Randomised controlled trial.
Participants	302 low-income pregnant women less than 28 weeks pregnant, English or Spanish-speaking, and who were not receiving inpatient drug treatment were recruited from multiple obstetric sites in the Boston metropolitan area (USA). Current smokers or women smoking in the past 3 months (recent quitters) were included
Interventions	Motivational interviewing interventions to promote smoking cessation and reduce environmental tobacco smoke exposure provided during 3 home visits, with feedback provided about the household nicotine levels
Outcomes	Smoking cessation at end of pregnancy and relapse prevention; infant health outcomes; life-years and quality of life; primary cost data and economic analysis
Starting date	1997-2000
Contact information	jennifer.ruger@yale.edu
Notes	Written request for further trial information sent 18/7/2012, but advised that results were not yet available