[Epidemiology of sarcoidosis in Poland (author's transl)]

The numbers of patients registered in chest clinics and of those treated in hospitals or sanatoria enable to calculate the index of sarcoidosis: 7.1/100000 inhabitants in 1973 and 7.7/100000 in 1974. The comparison with the data of the years 1963, 1967, 1968 and 1969 shows an increase of sarcoidosis. Highest frequency has been observed among the age group 30--40 years. Women are slightly predominating (56 p.c.).