title: Prevalence of hyperactivity in elementary school children as a function of social system definers.
abstract: This study seeks to reconcile the widely varying estimates of prevalence of hyperactivity in children. Parents, teachers, and physicians were asked to identify hyperactive children in a sample of some 5000 elementary school children. Approximately five percent were considered hyperactive by at least one defining system; only one percent were considered hyperactive by all three definers. Prevalence rates were relatively constant from kindergarten through fifth grade.
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000453:epidemiology; D002140:California; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005006:Ethnicity; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008960:Models, Psychological; D012574:Schools; D012737:Sex Factors; D012931:Social Environment; D012959:Socioeconomic Factors