[Occurrence of cardiovascular risk factors among working Danish men 20-59 years of age].

The prevalence of risk factors for ischaemic heart disease (IHD) was recorded in 1,365 men aged 20-59 years in active employment. The purpose was to evaluate the implications of a high-risk strategy based on the rather conservative Danish guidelines for treatment of hypercholesterolemia. The prevalence of various risk factors depends on age, but in all, 1% had diabetes mellitus, 5% had a family history of premature IHD, 50% were smokers, 21% were obese, 12% had systolic blood pressure greater than or equal to 160 mmHg, 8% had diastolic blood pressure greater than or equal to 100 mmHg and 14% had serum cholesterol greater than 7 mmol/l. Only 24% had none of these risk factors and there was a considerable clustering of risk factors in certain subgroups. Approximately 34%, varying from 17% of the younger to 49% of the older, required medical follow-up as part of the high risk strategy. We have estimated the required number of visits to a general practitioner, if all Danish men aged 20-59 years were screened within three years and approximately 30% required follow-up for five years, with three visits in the first year and one thereafter. The number of visits peaks at 450 visits per year during the third year, and a number of circumstances could reduce this figure considerably. Multifactorial models to estimate risk in connection with screening should be adopted to the Danish guidelines for treatment of hypercholesterolemia and hypertension, and future guidelines for intervention should probably be integrated in such a multifactorial model. To practice preventive medicine, many physicians will need greater knowledge of dietary counselling.