title: The Montreal Cognitive Assessment as a preliminary assessment tool in general psychiatry: Validity of MoCA in psychiatric patients.
abstract: OBJECTIVE
  The aim of the presented research was to obtain the initial data regarding the validity of Montreal Cognitive Assessment (MoCA) in diagnosing cognitive impairment in psychiatrically hospitalized patients.
  
  
  METHODS
  The results in MoCA obtained from 221 patients were analyzed in terms of proportional participation of patients with particular diagnosis in three result ranges. In 67 patients, additional version of the scale was also used. Comparative analysis of average results in particular diagnostic groups (organically based disorders, disorders due to psychoactive substance use, psychotic disorders, neurotic disorders and personality disorders) was also carried out, as well as an analysis of the scale's accuracy as a diagnostic test in detecting organic disorders.
  
  
  RESULTS
  The reliability of the test measured with between tests correlation coefficient rho=0.92 (P=.000). Significant differences between particular diagnoses groups were detected (J-T=13736; P=.000). The cutoff points of 23 turned out to have a satisfactory sensitivity and specificity (0.82 and 0.70, respectively) in diagnosing organically based disorders. The area below the receiver operating characteristic curve (AUC=0.854; P=.000) suggests that MoCA has a satisfactory value as a classifier.
  
  
  CONCLUSIONS
  The initial data suggest MoCA's high value in prediction of future diagnosis of organically based disorders. The initial results obtained in particular group of diagnoses support construct validity of the method.
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland; Clinic of Psychiatry, Department of Health Sciences, Medical University of Warsaw, Pruszków, Poland. Electronic address: jgierus@gmail.com.
authors.forename: J
authors.initials: J
authors.lastname: Gierus
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland; Clinic of Psychiatry, Department of Health Sciences, Medical University of Warsaw, Pruszków, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Mosiołek
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland; Clinic of Psychiatry, Department of Health Sciences, Medical University of Warsaw, Pruszków, Poland.
authors.forename: T
authors.initials: T
authors.lastname: Koweszko
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Wnukiewicz
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland.
authors.forename: O
authors.initials: O
authors.lastname: Kozyra
authors.affiliation: The Prof. Jan Mazurkiewicz Mazovia Specialist Health Centre, Pruszków, Poland; Clinic of Psychiatry, Department of Health Sciences, Medical University of Warsaw, Pruszków, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Szulc
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D028642:Persons with Psychiatric Disorders / Q000523:psychology*; D008875:Middle Aged; D009483:Neuropsychological Tests; D011570:Psychiatry; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult
keywords: Cognitive assessment; Montreal Cognitive Assessment (MoCA); Psychiatric patients