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. 2010 Feb;116(2-3):243-51.
doi: 10.1016/j.schres.2009.08.005. Epub 2009 Sep 9.

Neurocognitive diagnosis and cut-off scores of the Screen for Cognitive Impairment in Psychiatry (SCIP-S)

Emilio Rojo  1 , Oscar Pino, Georgina Guilera, Juana Gómez-Benito, Scot E Purdon, Benedicto Crespo-Facorro, Manuel J Cuesta, Manuel Franco, Anabel Martínez-Arán, Nuria Segarra, Rafael Tabarés-Seisdedos, Eduard Vieta, Miguel Bernardo, Francisco Mesa, Javier Rejas; Spanish Working Group in Cognitive Function
Collaborators, Affiliations

Neurocognitive diagnosis and cut-off scores of the Screen for Cognitive Impairment in Psychiatry (SCIP-S)

Emilio Rojo et al. Schizophr Res. 2010 Feb.

Abstract

Objectives: To demonstrate the ability of the Screen for Cognitive Impairment in Psychiatry (SCIP-S) to discriminate between cognitively-impaired individuals and those with adequate functioning in a sample of schizophrenic and bipolar patients, as well as in a control group.

Methods: The SCIP-S, together with a full neuropsychological battery, was administered to three groups: patients with schizophrenia, patients diagnosed with bipolar disorder I, and controls. The battery scores were used to perform a standardization with respect to the control group and this served to determine the comparison groups (cognitively impaired versus unimpaired) for each of the subtests of the SCIP-S. A full analysis of decision validity was conducted on the basis of receiver operating characteristic curves (sensitivity and specificity, +LR and -LR, PPV and NPV).

Results: All the subtests yielded adequate values for sensitivity and specificity with the proposed cut-off points, while the total score of the SCIP (<70) was associated with a sensitivity of 87.9 and specificity of 80.6.

Conclusions: The SCIP-S shows adequate decision validity as a screening tool for cognitive deficit in patients diagnosed with schizophrenia or bipolar disorder.

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