title: Validation of the Brazilian Portuguese version of the Beck Depression Inventory-II in a community sample.
abstract: BACKGROUND
  The Beck Depression Inventory (BDI) is used worldwide for detecting depressive symptoms. This questionnaire has been revised (1996) to match the DSM-IV criteria for a major depressive episode. We assessed the reliability and the validity of the Brazilian Portuguese version of the BDI-II for non-clinical adults.
  
  
  METHODS
  The questionnaire was applied to 60 college students on two occasions. Afterwards, 182 community-dwelling adults completed the BDI-II, the Self-Report Questionnaire, and the K10 Scale. Trained psychiatrists performed face-to-face interviews with the respondents using the Structured Clinical Interview (SCID-I), the Montgomery-Åsberg Depression Scale, and the Hamilton Anxiety Scale. Descriptive analysis, signal detection analysis (Receiver Operating Characteristics), correlation analysis, and discriminant function analysis were performed to investigate the psychometric properties of the BDI-II.
  
  
  RESULTS
  The intraclass correlation coefficient of the BDI-II was 0.89, and the Cronbach's alpha coefficient of internal consistency was 0.93. Taking the SCID as the gold standard, the cut-off point of 10/11 was the best threshold for detecting depression, yielding a sensitivity of 70% and a specificity of 87%. The concurrent validity (a correlation of 0.63-0.93 with scales applied simultaneously) and the predictive ability of the severity level (over 65% correct classification) were acceptable.
  
  
  CONCLUSIONS
  The BDI-II is reliable and valid for measuring depressive symptomatology among Portuguese-speaking Brazilian non-clinical populations.
authors: Section of Psychiatric Epidemiology, Institute and Department of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil.
authors: Marcio Henrique
authors: MH
authors: Gomes-Oliveira
authors: Clarice
authors: C
authors: Gorenstein
authors: Francisco
authors: F
authors: Lotufo Neto
authors: Laura Helena
authors: LH
authors: Andrade
authors: Yuan Pang
authors: YP
authors: Wang
mesh_terms: D000328:Adult; D001938:Brazil; D003865:Major Depressive Disorder / Q000175:diagnosis*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010555:Personality Inventory; D011594:Psychometrics; D012016:Reference Values; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D014175:Translating; D055815:Young Adult