Schizophrenia in males of cognitive performance: discriminative and diagnostic values

OBJECTIVE: To evaluate the discriminative and diagnostic values of neuropsychological tests for identifying schizophrenia patients. METHODS: A cross-sectional study with 36 male schizophrenia outpatients and 72 healthy matched volunteers was carried out. Participants underwent the following neuropsy...

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Main Authors: Analuiza Camozzato, Márcia L F Chaves
Format: Article
Language:English
Published: Universidade de São Paulo 2002-12-01
Series:Revista de Saúde Pública
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102002000700013&lng=en&tlng=en
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author Analuiza Camozzato
Márcia L F Chaves
author_facet Analuiza Camozzato
Márcia L F Chaves
author_sort Analuiza Camozzato
collection DOAJ
description OBJECTIVE: To evaluate the discriminative and diagnostic values of neuropsychological tests for identifying schizophrenia patients. METHODS: A cross-sectional study with 36 male schizophrenia outpatients and 72 healthy matched volunteers was carried out. Participants underwent the following neuropsychological tests: Wisconsin Card Sorting test, Verbal Fluency, Stroop test, Mini Mental State Examination, and Spatial Recognition Span. Sensitivity and specificity estimated the diagnostic value of tests with cutoffs obtained using Receiver Operating Characteristic curves. The latent class model (diagnosis of schizophrenia) was used as gold standard. RESULTS: Although patients presented lower scores in most tests, the highest canonical function for the discriminant analysis was 0.57 (Verbal Fluency M). The best sensitivity and specificity were obtained in the Verbal Fluency M test (75 and 65, respectively). CONCLUSIONS: The neuropsychological tests showed moderate diagnostic value for the identification of schizophrenia patients. These findings suggested that the cognitive impairment measured by these tests might not be homogeneous among schizophrenia patients.
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spelling doaj.art-3a8ecdfea1744ef9a18e0b2cbee1f28c2022-12-22T02:51:28ZengUniversidade de São PauloRevista de Saúde Pública1518-87872002-12-0136674374810.1590/s0034-89102002000700013S0034-89102002000700013Schizophrenia in males of cognitive performance: discriminative and diagnostic valuesAnaluiza Camozzato0Márcia L F Chaves1Universidade Federal do Rio Grande do SulUniversidade Federal do Rio Grande do SulOBJECTIVE: To evaluate the discriminative and diagnostic values of neuropsychological tests for identifying schizophrenia patients. METHODS: A cross-sectional study with 36 male schizophrenia outpatients and 72 healthy matched volunteers was carried out. Participants underwent the following neuropsychological tests: Wisconsin Card Sorting test, Verbal Fluency, Stroop test, Mini Mental State Examination, and Spatial Recognition Span. Sensitivity and specificity estimated the diagnostic value of tests with cutoffs obtained using Receiver Operating Characteristic curves. The latent class model (diagnosis of schizophrenia) was used as gold standard. RESULTS: Although patients presented lower scores in most tests, the highest canonical function for the discriminant analysis was 0.57 (Verbal Fluency M). The best sensitivity and specificity were obtained in the Verbal Fluency M test (75 and 65, respectively). CONCLUSIONS: The neuropsychological tests showed moderate diagnostic value for the identification of schizophrenia patients. These findings suggested that the cognitive impairment measured by these tests might not be homogeneous among schizophrenia patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102002000700013&lng=en&tlng=enEsquizofreniaTranstornos cognitivosTestes psicológicosValor diagnóstico
spellingShingle Analuiza Camozzato
Márcia L F Chaves
Schizophrenia in males of cognitive performance: discriminative and diagnostic values
Revista de Saúde Pública
Esquizofrenia
Transtornos cognitivos
Testes psicológicos
Valor diagnóstico
title Schizophrenia in males of cognitive performance: discriminative and diagnostic values
title_full Schizophrenia in males of cognitive performance: discriminative and diagnostic values
title_fullStr Schizophrenia in males of cognitive performance: discriminative and diagnostic values
title_full_unstemmed Schizophrenia in males of cognitive performance: discriminative and diagnostic values
title_short Schizophrenia in males of cognitive performance: discriminative and diagnostic values
title_sort schizophrenia in males of cognitive performance discriminative and diagnostic values
topic Esquizofrenia
Transtornos cognitivos
Testes psicológicos
Valor diagnóstico
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89102002000700013&lng=en&tlng=en
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