title: Clinical usefulness of the screen for cognitive impairment in psychiatry (SCIP-S) scale in patients with type I bipolar disorder.
abstract: BACKGROUND
  The relevance of persistent cognitive deficits to the pathogenesis and prognosis of bipolar disorders (BD) is understudied, and its translation into clinical practice has been limited by the absence of brief methods assessing cognitive status in Psychiatry. This investigation assessed the psychometric properties of the Spanish version of the Screen for Cognitive Impairment in Psychiatry (SCIP-S) for the detection of cognitive impairment in BD.
  
  
  METHODS
  After short training, psychiatrists at 40 outpatient clinics administered the SCIP three times over two weeks to a total of 76 consecutive type I BD admissions. Experienced psychologists also administered a comprehensive battery of standard neuropsychological instruments to clinical sample and 45 healthy control subjects.
  
  
  RESULTS
  Feasibility was supported by a brief administration time (approximately 15 minutes) and minimal scoring errors. The reliability of the SCIP was confirmed by good equivalence of forms, acceptable stability (ICC range 0.59 to 0.87) and adequate internal consistency (Chronbach's alpha of 0.74). Construct validity was granted by extraction of a single factor (accounting 52% of the variance), acceptable correlations with conventional neuropsychological instruments, and a clear differentiation between bipolar I and normal samples. Efficiency was also provided by the adequate sensitivity and specificity.
  
  
  CONCLUSIONS
  The sample size is not very large. The SCIP and the neurocognitive battery do not cover all potentially relevant cognitive domains. Also, sensitivity to change remains unexplored.
  
  
  CONCLUSIONS
  With minimal training, physicians obtained a reliable and valid estimate of cognitive impairment in approximately 15 minutes from an application of the SCIP to type I BD patients.
authors.affiliation: Department of Methodology, Faculty of Psychology, University of Barcelona, Barcelona, Spain. gguilera@ub.edu
authors.forename: Georgina
authors.initials: G
authors.lastname: Guilera
authors.forename: Oscar
authors.initials: O
authors.lastname: Pino
authors.forename: Juana
authors.initials: J
authors.lastname: Gómez-Benito
authors.forename: J Emilio
authors.initials: JE
authors.lastname: Rojo
authors.forename: Eduard
authors.initials: E
authors.lastname: Vieta
authors.forename: Rafael
authors.initials: R
authors.lastname: Tabarés-Seisdedos
authors.forename: Nuria
authors.initials: N
authors.lastname: Segarra
authors.forename: Anabel
authors.initials: A
authors.lastname: Martínez-Arán
authors.forename: Manuel
authors.initials: M
authors.lastname: Franco
authors.forename: Manuel J
authors.initials: MJ
authors.lastname: Cuesta
authors.forename: Benedicto
authors.initials: B
authors.lastname: Crespo-Facorro
authors.forename: Miguel
authors.initials: M
authors.lastname: Bernardo
authors.forename: Scot E
authors.initials: SE
authors.lastname: Purdon
authors.forename: Teresa
authors.initials: T
authors.lastname: Díez
authors.forename: Javier
authors.initials: J
authors.lastname: Rejas