title: Frequency of manic symptoms and bipolar disorder in psychiatrically hospitalized adolescents using the K-SADS Mania Rating Scale.
abstract: OBJECTIVE
  The aim of this study was to assess the frequency of manic symptoms and bipolar spectrum disorders in an adolescent inpatient psychiatric sample using the Kiddie Schedule for Affective Disorders and Schizophrenia (K-SADS) Mania Rating Scale (MRS), parent and adolescent measures.
  
  
  METHODS
  A total of 391 consecutive admissions to a psychiatric inpatient unit were assessed using the K-SADS MRS, the Childhood Inventory of Psychiatric Syndromes (CHIPS), and other clinically relevant measures.
  
  
  RESULTS
  The frequency of Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) manic symptoms in this population was generally high. However, only 19.6% received a consensus diagnosis of juvenile bipolar disorder. The K-SADS MRS discriminated bipolar from non-bipolar patients when parents rated symptoms but not when rated by adolescents.
  
  
  CONCLUSIONS
  This study of non-selected adolescents over a one-year period demonstrates that bipolar spectrum disorders in an inpatient population are common, and that the use of the KSADS MRS is effective in identifying this syndrome.
authors.affiliation: Brown Medical School, Providence, and Bradley Hospital, East Providence, Rhode Island 02915, USA. Jhunt@Lifespan.org
authors.forename: Jeffrey I
authors.initials: JI
authors.lastname: Hunt
authors.forename: Jennifer
authors.initials: J
authors.lastname: Dyl
authors.forename: Laura
authors.initials: L
authors.lastname: Armstrong
authors.forename: Erica
authors.initials: E
authors.lastname: Litvin
authors.forename: Thomas
authors.initials: T
authors.lastname: Sheeran
authors.forename: Anthony
authors.initials: A
authors.lastname: Spirito
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D005260:Female; D006760:Hospitalization; D006801:Humans; D015994:Incidence; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D013577:Syndrome