Psychometric evaluation of the Signs of Depression Scale with a revised scoring mechanism in stroke patients with communicative impairment

Clinical Rehabilitation
Mariska J van DijkMarieke J Schuurmans

Abstract

To investigate (1) the diagnostic value of the Signs of Depression Scale (SODS) in a Likert scale format and (2) whether the Likert scale improves the diagnostic value compared with the original dichotomous scale. Cross-sectional multicentre study. One general and one university hospital in the Netherlands. A total of 116 consecutive hospitalized stroke patients, of whom 53 were patients with communicative impairment. Depression was diagnosed with the Composite International Diagnostic Interview (CIDI) administered to the patients' relatives. The Barthel Index (BI) was used as an external validator. The correlation between the CIDI and the SODS-Likert or the SODS was small ( rb = 0.18), and the correlation between the Barthel Index and the SODS-Likert ( rs = -0.30) or the SODS ( rs = -0.33) was moderate. For both instruments, the discriminatory power for diagnosing depression when compared with the CIDI was best at a cut-off score of ⩾2. The internal consistency of the SODS-Likert was acceptable (α = 0.69) and slightly higher than that of the SODS (α = 0.57). The inter-rater reliability of the SODS-Likert and the SODS was acceptable (intraclass correlation coefficient (ICC) 0.66 and ICC 0.80, respectively). The clinical utility...Continue Reading

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Citations

Jul 19, 2018·Journal of Advanced Nursing·Mariska J Van DijkJanneke M de Man-van Ginkel
Nov 13, 2020·American Journal of Speech-language Pathology·Jacqueline S Laures-GoreSamir Belagaje

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