Approbation of the Methodology "Scale for Cognitive Status Assessment of the After-Stroke Patients with Speech Disorders"

INTRODUCTION. The development of a screening tool for diagnosing cognitive status in stroke patients with speech disorders is an urgent problem of rehabilitation. AIM. To develop and validate a screening diagnostic technique for the cognitive status of patients after ischemic stroke with speech disorders. MATERIALS AND METHODS. The methodology "Scale for cognitive status assessment of the after-stroke patients with speech disorders" (ShKSPIR) was evaluated by a retrospective clinical and statistical analysis of 7814 patient medical histories, 1916 of which were patients with speech disorders due to ischemic stroke in the period up to 1 year: average age 66.5 ± 11.3 years, 843 (44.0 %) women, 1073 (56.0 %) men. Psychometric characteristics were studied in 147 patients (age — 63.0 ± 8.0 years, 26 (57.8 %) women, 19 (42.2 %) men), 40 patients of them (27.2 %) had speech disorders. The prognostic assessment, practical significance and competitive validity of the methodology were studied by comparing the results obtained with the data of the methodology with known psychometric characteristics ("Brief neuropsychological examination of the cognitive sphere"). RESULTS. Satisfactory psychometric characteristics of the technique have been proven: substantive and constructive validity, synchronous reliability, discriminativeness. The non-orthogonality of the three-factor structure explaining 55 % of the variance of the original data matrix is discussed. The practical significance is investigated and the high competitive validity of the tested methodology is shown. The standardization of indicators was carried out in accordance with the quantitative determinant of the ICF. CONCLUSION. In the process of testing the ShKSPIR methodology, test standards have been developed and standardized. The technique can be used for screening assessment of the cognitive status of stroke patients with speech disorders, while planning individual rehabilitation programs.