title: Spanish version of the Delirium Rating Scale-Revised-98: reliability and validity.
abstract: OBJECTIVE
  The aim of this study was to investigate the reliability and validity of the Spanish translation of the Delirium Rating Scale-Revised-98 (DRS-R-98).
  
  
  METHODS
  Thirty patients diagnosed of delirium (DSM-IV) by a variety of general hospital medical wards criteria were assessed using the DRS-R-98, MiniMental State Examination (MMSE), Mini Examen Cognoscitivo (MEC; Spanish version of the MMSE) and the Orientation Scale (OS). Independent ratings between two psychiatrists were used to calculate intraclass correlation coefficients (ICCs) for interrater reliability.
  
  
  RESULTS
  The DRS-R-98 had high interrater reliability for both total and severity scale scores (ICC=.96 for each). The DRS-R-98 severity score significantly correlated (P<.001) with MMSE (r=-.67), MEC (r=-.62) and OS (r=.73). Cronbach's alpha (r=.78 ) indicated high internal consistency of the DRS-R-98.
  
  
  CONCLUSIONS
  The Spanish translation of the DRS-R-98 has high interrater reliability for both total and severity scale scores, high internal consistency, and very good concurrent validity in relation to other cognitive measures and therefore can be administered to delirious patients.
authors.affiliation: Institut d'Atenció Psiquiàtrica, Salut Mental i Toxicomanies, Department of Psychiatry, Hospital del Mar, University Autònoma Barcelona, Passeig Marítim 25-29, Barcelona 08003, Spain.
authors.forename: Francina
authors.initials: F
authors.lastname: Fonseca
authors.forename: Antonio
authors.initials: A
authors.lastname: Bulbena
authors.forename: Rosa
authors.initials: R
authors.lastname: Navarrete
authors.forename: Núria
authors.initials: N
authors.lastname: Aragay
authors.forename: Mercè
authors.initials: M
authors.lastname: Capo
authors.forename: Antonio
authors.initials: A
authors.lastname: Lobo
authors.forename: Paula T
authors.initials: PT
authors.lastname: Trzepacz
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003693:Delirium / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D015203:Reproducibility of Results; D013030:Spain; D011795:Surveys and Questionnaires