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Validation of the Severe Impairment Battery for patients with Alzheimer's disease in Korea
Author(s) -
Suh GukHee,
Kang CheolJoong
Publication year - 2006
Publication title -
international journal of geriatric psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 129
eISSN - 1099-1166
pISSN - 0885-6230
DOI - 10.1002/gps.1537
Subject(s) - alzheimer's disease , degenerative disease , disease , cognitive impairment , battery (electricity) , gerontology , medicine , central nervous system disease , dementia , psychology , psychiatry , power (physics) , physics , quantum mechanics
Objective To examine the reliability and the validity of the Korean version of the SIB (SIB‐K); and to determine its usefulness in patients with severe dementia. Methods Sixty‐five patients (56 women, nine men) who lived in a nursing home and met the criteria of the Diagnostic and Statistical Manual of Mental Disorders, 4th edn , for the dementia of the Alzheimer's type were selected. Following clinical examination and evaluation using the Korean version of the Severe Impairment Battery (SIB‐K), the Korean versions of the Mini‐Mental State Examination (MMSE‐K) and the cognitive subscale of the Alzheimer's Disease Assessment Scale (ADAS‐K‐cog) were applied as comparators. Results The mean scores on the SIB‐K were 63.9 (SD = 29.1), with a possible maximum of 100 points. Patients with MMSE scores from 0 to 4 points showed wide range of the SIB score from 4 to 62. The internal consistency of the SIB‐K obtained by the Cronbach's alpha was 0.98. The inter‐rater and test–retest reliabilities of the SIB‐K obtained by the Spearman's rho were 0.99 and 0.97, respectively. Correlation between the SIB‐K and the MMSE‐K was 0.87, while correlation between the SIB‐K and the ADAS‐K‐cog was −0.76. Conclusions This study indicates that the Korean version of the SIB is a reliable, valid and useful test for measuring cognition of severely demented patients at a point where other conventional tests lose their sensitivity and show a floor effect. Copyright © 2006 John Wiley & Sons, Ltd.