[A contribution to the frequency and assessment possibilities of chronic aspecific respiratory tract diseases (CARD)--an epidemiological study in the mostly agricultural district of Neubrandenburg].

A test was carried out in order to determine representative information on CNSRD prevalence in children at the age of 3 to 15 and to check possibilities of registration. A clinical examination was performed at a totality of 122,400 children of a district, a sample test of 2,927 children was carried out. 10% of the children suffer from chronic diseases of the respiratory tract. In 3 to 4% of these children it is required to apply an acute or frequent therapy. The incidence of asthma bronchiale totals 1 to 2%.