title: Diagnostic/genetic studies in mental retardation.
abstract: Excluding environmental, psychotic, and unclassified categories, a total of 1,231 cases of severe mental retardation were found in the Central Wisconsin Center study. Some 45% of cases were estimated to be genetically caused or predisposed, but in only 15% was the risk of recurrence considered high. Nevertheless, I feel strongly that parents of all retarded patients deserve etiologic/diagnostic counseling.
mesh_terms: D000013:Congenital Abnormalities / Q000150:complications; D006801:Humans; D008607:Intellectual Disability / Q000150:complications / Q000453:epidemiology / Q000235:genetics*; D007360:Intelligence; D010808:Physical Examination; D012306:Risk; D014922:Wisconsin