Methods	Workplace screening. Matched pairs of worksites randomised. Unit of analysis was worksite
Participants	Men and women mean age 40 (17-73). N=1977
Interventions	Stage of change model used; motivational, educational, workplace environment and community reinforcement; focus on smoking and food choices. Duration 18 months
Outcomes	Smoking, blood cholesterol, dietary intake.
Notes	Despite documented implementation of interventions no evidence that changes in smoking, cholesterol concentration of dietary intakes were greater than improvements associated with secular trends observed in control sites. Large variation in rates of stopping smoking between sites suggested variable use and uptake of interventions