ECI-4 screening of attention deficit-hyperactivity disorder and co-morbidity in Mexican preschool children: preliminary results

OBJECTIVE: To examine prospectively usefulness of Early Childhood Inventory-4 (ECI-4) in identifying attention deficit-hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and conduct disorder (CD). METHOD: A sample of children <6 years of age were evaluated in school settings with ECI-4 and results compared with those of Conners Rating Scales-Revised (CRS-R) 6 months later. Sample consisted of 34 healthy children (20 boys, 14 girls) prospectively followed-up. RESULTS: Frequency of children fulfill DSM-IV AD-HD criteria in ECI-4 parent scale was 17%, and in teacher scale was 32%...