The multifactor primary prevention trial in Göteborg, Sweden

Area of Science:

• Cardiovascular disease epidemiology
• Preventive cardiology

Background:

• Coronary heart disease (CHD) and stroke remain leading causes of mortality.
• Identifying effective interventions to reduce cardiovascular disease (CVD) risk factors in the general population is crucial.

Purpose of the Study:

• To evaluate the impact of a multifactorial intervention program on coronary heart disease (CHD), stroke incidence, and total mortality.
• To assess changes in major CVD risk factors (blood pressure, cholesterol, smoking) in response to the intervention.

Main Methods:

• A randomized sample of 10,004 men aged 47-55 years was divided into intervention and control groups.
• Intervention included antihypertensive treatment, dietary advice for high cholesterol, and smoking cessation advice.
• Follow-up for CHD and stroke incidence and mortality occurred over 10 years.

Main Results:

• Significant reductions in blood pressure, serum cholesterol, and smoking rates were observed in the intervention group.
• These risk factor reductions were also noted in the control groups, indicating a general population trend.
• No significant differences in total mortality, stroke incidence, or CHD incidence were found between the intervention and control groups.

Conclusions:

• While the intervention successfully reduced major CHD risk factors in high-risk men, it did not translate to a significant reduction in disease incidence or mortality in the general population.
• Population-wide strategies, beyond targeting high-risk individuals, may be necessary to achieve a substantial impact on cardiovascular disease incidence.