title: [Development of the Spanish brief-version of the University of California Performance Skills Assessment (Sp-UPSA-Brief) in patients with schizophrenia and bipolar disorder].
abstract: BACKGROUND
  In patients with severe mental disorders outcome measurement should include symptoms, cognition, functioning and quality of life at least. Shorter and efficient instruments have greater potential for pragmatic and valid clinical utility. Our aim was to develop the Spanish UPSA Brief scale (Sp-UPSA-Brief).
  
  
  METHODS
  Naturalistic, 6-month follow-up, multicentre study. 139 patients with schizophrenia, 57 with bipolar disorder and 31 controls were evaluated using the Sp-UPSA, CGI-S, GAF, and PSP. We conducted a multivariate linear regression model to identify candidate subscales for the Sp-UPSA-Brief.
  
  
  RESULTS
  The stepwise regression model for patients with schizophrenia showed that communication and transportation Sp-UPSA subscales entered first and second at p<0.0001 (R(2)=0.88, model df=2, F=395.05). In patients with bipolar disorder transportation and communication Sp-UPSA subscales entered first and second at p<0.0001 (R(2)=0.87, model df=2, F=132.32). Cronbach's alpha was 0.78 in schizophrenia and 0.64 in bipolar patients. Test-retest was 0.66 and 0.64 (p<0.0001) respectively. Pearson correlation coefficients between Sp-UPSA and Sp-UPSA-Brief were 0.93 for schizophrenia and 0.92 for bipolar patients (p<0.0001).The Sp-UPSA-Brief discriminated between patients and controls. In schizophrenia patients it also discriminated among different levels of illness severity according to CGI-S scores.
  
  
  CONCLUSIONS
  The Sp-UPSA-Brief is an alternate instrument to evaluate functional capacity that is valid and reliable. Having a shorter instrument makes it more feasible to assess functional capacity in patients with severe mental disorders, especially in everyday clinical practice.
authors.affiliation: Departamento de Psiquiatría, Universidad de Oviedo, Oviedo, España; Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España.
authors.forename: María Paz
authors.initials: MP
authors.lastname: Garcia-Portilla
authors.affiliation: Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España; Litwin Zucker Alzheimer's Disease Center, Feinstein Institute for Medical Research/Hofstra North Shore LIJ Scholl of Medicine, Manhassett, Nueva York, Estados Unidos; FIDMAG, Hermanas Hospitalarias Sant Boi de Llobregat, España.
authors.forename: Jesús
authors.initials: J
authors.lastname: Gomar
authors.affiliation: Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España.
authors.forename: María Teresa
authors.initials: MT
authors.lastname: Bobes-Bascaran
authors.affiliation: Departamento de Psiquiatría, Universidad de Oviedo, Oviedo, España.
authors.forename: Isabel
authors.initials: I
authors.lastname: Menendez-Miranda
authors.affiliation: Departamento de Psiquiatría, Universidad de Oviedo, Oviedo, España; Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España.
authors.forename: Pilar Alejandra
authors.initials: PA
authors.lastname: Saiz
authors.affiliation: Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España; Departamento de Psicología, Universidad de Oviedo, Oviedo, España.
authors.forename: José
authors.initials: J
authors.lastname: Muñiz
authors.affiliation: Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España; Departamento de Psiquiatría, Hospital General Universitario Gregorio Marañón, Madrid, España.
authors.forename: Celso
authors.initials: C
authors.lastname: Arango
authors.affiliation: Departamento de Psiquiatría, University of California, San Diego, La Jolla, California , Estados Unidos.
authors.forename: Thomas
authors.initials: T
authors.lastname: Patterson
authors.affiliation: Departamento de Psiquiatría, University of Miami Miller School of Medicine, Miami, Florida, Estados Unidos.
authors.forename: Philip
authors.initials: P
authors.lastname: Harvey
authors.affiliation: Departamento de Psiquiatría, Universidad de Oviedo, Oviedo, España; Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, España. Electronic address: bobes@uniovi.es.
authors.forename: Julio
authors.initials: J
authors.lastname: Bobes
authors.affiliation: Litwin Zucker Alzheimer's Disease Center, Feinstein Institute for Medical Research/Hofstra North Shore LIJ Scholl of Medicine, Manhassett, Nueva York, Estados Unidos.
authors.forename: Terry
authors.initials: T
authors.lastname: Goldberg
mesh_terms: D000328:Adult; D001714:Bipolar Disorder / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D012559:Schizophrenia / Q000175:diagnosis*; D013647:Task Performance and Analysis
keywords: Bipolar disorder; Capacidad funcional; Esquizofrenia; Functional capacity; Propiedades psicométricas; Psychometric properties; Schizophrenia; Sp-UPSA-Brief; Trastorno bipolar