[Epidemiologic study of persons having group 2 insurance in Denmark. 1. Historical development, social and demographic differences between health insurance groups 1 and 2].
The majority of adults in Denmark can choose between the forms of health insurance 1 and 2. Persons insured in Group 2, on payment of a premium, obtain certain perquisites as compared with Group 1, primarily they may consult general practitioners and specialists of their own choice. Since the introduction of the Health Insurance Law in 1976, the number of persons insured in Group 2 has decreased to 3.8% of those insured in 1988. More than 3/4 of these have been insured in Group 2 since 1976. The number of new group 2 insured persons has remained relatively stable at about 3,000 persons per annum. The average age in Group 2 is 58.3 years as compared with 45.0 years in Group 1. 60% live in the region of the capital. The number of economically and socially well established persons in Group 2 is markedly higher than in Group 1, particularly in the higher age groups where the mortality in Group 2 insured persons is considerably lower than in Group 1 insured persons.