Aggressive conduct disorder of children.

We studied 58 children with aggressive conduct disorder who had been admitted to a psychiatric ward and 33 with other disorders, excluding autism and organic syndromes, who were also inpatients. Nurses's observations of the children's behavior on the ward sharply separated the two groups and confirmed the parents' and teachers' descriptions of the conduct disorder children's behavior at home and in school. Items in the clinical history also separated the two groups; for example, conduct disorder began at a much earlier age than the other disorders. Our evidence gives further support to the validity of aggressive conduct disorder as a psychiatric syndrome.