[Participation of the population in mass screening and the role of complete population surveillance for detection of the disease studied (from the experience of the methodical measures for the prevention of ischemic heart disease in Kaunas)].

A comparison of the results of examination of 100 individuals, some of whom had taken part in the survey while the others had refused it and information about them was specially obtained by other means (in some cases by collecting the medical documentation), is presented. Factors conducive to the development of ischemic heart disease predominated among individuals who refused to take part in the survey. The incidence of ischemic heart disease and arterial hypertension was also higher among them. It is concluded that individuals who refuse examination during preventive survey form a group with a high risk of the development of ischemic heart disease; this group should be taken into account when therapeutic and preventive measures are conducted among the population.