[Development of neonates at risk].

From a group of 2542 children followed up for a prolonged period the authors selected several groups of risk neonates and compared their subsequent development with that of a control group from the same cohort. In the selected risk groups the authors evaluated anamnestic data of the mothers, somatic and neuropsychic development of the children. They compared also the psychomotor development of the children in the first years of life, their school attendance and progress, mean values of IQ and various mental deviations, as compared with children of the control group. By comparison with the incidence of analogous disorders the authors wanted to assess the ratic risks from early stages in later developmental disorders.