The Dutch Heart Health Community Intervention 'Hartslag Limburg': effects on smoking behaviour. Ronda G, Van Assema P, Candel M, Ruland E, Steenbakkers M, Van Ree J, Brug J. Department of Health Education and Promotion, Maastricht University, The Netherlands. G.Ronda@GVO.unimaas.nl BACKGROUND AND METHODS: A pretest-posttest control group design with two posttests was used to evaluate the effects of a regional Dutch Heart Health Community Intervention on smoking behaviour and its determinants. At baseline, a cohort research population of 1,200 smokers was recruited in the intervention region and in a control region. Data was gathered by means of short structured telephone interviews. RESULTS: No significant differences were found between the intervention region and the control region on smoking behaviour and its determinants. CONCLUSION: It is concluded that the regional intervention was unable to exceed secular trends in smoking cessation