Cardiovascular prevention in the Hartslag Limburg project: effects of a high-risk approach on behavioral risk factors in a general practice population

BACKGROUND: This study describes a general-practice-based high-risk cardiovascular prevention approach in Maastricht, The Netherlands (1999-2003). The intervention consisted of a complete registration of risk factors, optimization of medical treatment and health counseling on high fat consumption, smoking and physical inactivity. METHODS: Behavioral effects were assessed in a trial, randomization by practice and usual care as control. Validated questionnaires were completed by 1300 patients at baseline, 1174 after 4 months (90.3%) and 1046 (80.5%) after 18 months. RESULTS: After 4 months, intention-to-treat analyses revealed a decrease in saturated fat intake of 1.3 points (scale ranging from 7 to 30 points, p=0.000). This was partly sustained after 18 months (-0.5 points, p=0.014). After 18 months, obese intervention patients were more likely to be sufficiently physically active than their control counterparts (OR=1.90, p=0.023). No intervention effects were found for smoking. CONCLUSION: Given the multiple factor and multiple component high-risk approach, the intervention had modest effects on only some of the behavioral risk factors addressed. Process data showed that the registration of risk factors and the optimization of medical treatment were only partly implemented, that the health counseling component could be further improved and that the intervention could benefit from additional health promoting strategie

Effects of health counseling on behavioural risk factors in a high-risk cardiology outpatient population: a randomized clinical trial

BACKGROUND: An evaluation study of an individual lifestyle advice intervention to reduce cardiovascular risk behaviours (high fat consumption, smoking, physical inactivity). METHODS: A randomized, controlled trial at the cardiology outpatient clinic of the University Hospital Maastricht. Participants were at high risk of incurring a cardiovascular event. Changes in risk behaviours and behavioural determinants were assessed with self-administered validated questionnaires. RESULTS: Questionnaires were completed by 1270 patients at baseline, 1169 after 4 months (92%), and 1032 after 18 months (81.3%). After 4 months, intention-to-treat analyses revealed a decrease in fat consumption (-5.6%, P = 0.000), a reduction in the percentage of smokers [odds ratio (OR) 0.57, 95% confidence intervals (CI) 0.33-0.97] and a trend towards a maintained physical activity level (OR 1.28, 95% CI 0.97-1.70). No long-term effects were found. CONCLUSION: The lifestyle advice intervention was potentially effective in changing cardiovascular risk behaviours, but should be further improved to be effective in secondary cardiovascular prevention. The main limitations of the study were related to the randomization procedure and the self-selection of patients and cardiologist