COMORBIDITY IN HYPERACTIVE-CHILDREN - ISSUES RELATED TO SELECTION BIAS, GENDER, SEVERITY, AND INTERNALIZING SYMPTOMS

Parental behavior ratings of hyperactive boys and girls aged 6-11 year s seen for evaluation in a general outpatient child psychiatry clinic and in a specialty ''attention deficit disorder'' (ADD) program were a nalyzed. The pattern of comorbidity in the two groups showed no signif icant differences. Most of the associated internalizing and externaliz ing behavioral scales in hyperactive boys and in hyperactive girls wer e elevated and in clinical ranges except for the ''somatic complaints' ' scale. Comorbidity in both hyperactive boys and girls was related to the severity of the hyperactivity itself.