42 children representative of Swedish urban seven-year-olds with a combination of various minor neurodevelopmental deficits in the form of so-called minimal brain dysfunction (MBD) syndromes were compared with 51 children of the same age without such problems as regards general health data from parents' interviews and questionnaires and from paediatric examinations. The findings at the physical examination revealed only few and small differences concerning minor physical anomalies that, in part, is dealt with in a separate report. Children with MBD had experienced simple febrile convulsions significantly more often than controls, and an abnormal EEG was a common finding in these cases. So-called psychosomatic complaints were not overrepresented in the MBD group, but enuresis and encopresis was somewhat more common. The parents' answers to a set of 6 questions (concerned with late speech development, late motor development, gross motor clumsiness, fine motor clumsiness, "shuffling" and difficulties to concentrate) were found to have a high discriminating capacity detecting for MBD syndromes. The possibility of a clinical application of this finding is discussed.