title: A factor analysis of signs and symptoms of the manic episode with Bech-Rafaelsen Mania and Melancholia Scales.
abstract: BACKGROUND
  Several factor analyses of signs and symptoms of mania have been reported using different rating scales. We propose here that the use of two instruments well known in the European literature may be useful in detecting the structure of manic episodes.
  
  
  METHODS
  We investigated the pattern of symptoms in a group of 124 bipolar inpatients hospitalised for a manic episode. We conducted a factor analysis of the broad range of psychiatric symptoms covered by the Bech-Rafaelsen Mania Scale (BRMaS) and Melancholia Scale (BRMeS).
  
  
  RESULTS
  Five eigen values were greater than unity, which determined the number of factors computed. The five factors captured 66.7% of the total variance. Following rotation, five factors were clinically relevant.
  
  
  CONCLUSIONS
  This suggests that both euphoric activation and depression are prominent in this sample.
authors: Department of Clinical Psychology, 'Villa Serena Medical Center', Città S. Angelo (Pescara), Italy. a.rossi@villaserena.it
authors: A
authors: A
authors: Rossi
authors: E
authors: E
authors: Daneluzzo
authors: L
authors: L
authors: Arduini
authors: M
authors: M
authors: Di Domenico
authors: R
authors: R
authors: Pollice
authors: C
authors: C
authors: Petruzzi
mesh_terms: D001714:Bipolar Disorder / Q000175:diagnosis* / Q000523:psychology; D003866:Depressive Disorder / Q000175:diagnosis* / Q000523:psychology; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires