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KMID : 1100220060050020070
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Dementia and Neurocognitive Disorders
2006 Volume.5 No. 2 p.70 ~ p.76
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The Validity and Reliability of the Korean version of Severe Impairment Battery
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Na Hae-Ri
Lee Jung-Wook
Ko Seok-Bum
Park Seong-Min
Lee Seung-Hyun
Yang Dong-Won
Han Il-Woo
Kim Dae-Hoon
Baek Min-Jae
Baek Min-Jae
Lee Jung-Seok
Kim Jin-Suk
Kim Sang-Yun
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Abstract
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Background: Measurement of cognitive dysfunction in the early stages of Alzheimer’s disease (AD) has been well studied and there are many objective tests in use for this purpose. With exception of clinical rating scales, however, there are only a few objective measures of cognition for tracking progression in advanced AD. The Severe Impairment Battery (SIB) is a test which has been developed taking into account the specific cognitive and behavioral features of patients with severe dementia.
Objectives: The aim of this study was to test reliability and concurrent validity of the Korean version of the Severe Impairment Battery (K-SIB). Methods: Participants included 10 normal healthy elderly and 91 patients with moderate to severe AD. The diagnosis of probable AD was established according to National Institute for Neurological and Communicative Disorders and Stroke/Alzheimer’s Disease Stroke/Alzheimer’s Disease and Related Disorders (NINCDSADRDA) criteria. To obtain concurrent validity, all the participants received K-SIB, Korean version of minimental status examination (K-MMSE) on the same day. We also tested inter-rater reliability among six raters using a videotape recording and tested test-retest reliability.
Results: The mean score on the K-SIB was 68.97±19.08 with a possible maximum of 100 points. The mean scores on the three K-SIB groups (group 1: K-MMSE scores of 11-15, group 2: K-MMSE scores of 6-10, group 3: K-MMSE scores of 0-5) were 82.49±7.70, 64.47±15.27 and 41.09±21.56. Significant correlations were found between the K-MMSE and the K-SIB (ｒ=0.808), between the Clinical Dementia Rating (CDR) and the K-SIB (ｒ=-0.72) between Sum of Box of the CDR (CDR-SB) and the K-SIB (ｒ=-0.70), between Global Deterioration Scale (GDS) and the K-SIB (ｒ=-0.580), between Baylor Profound Mental Status Examination (BPMSE) and the K-SIB (ｒ= 0.83), between Barthel Activities of Daily Living (B-ADL) and the K-SIB (ｒ=0.53), Korean Instrumental ADL (K-IADL) and the K-SIB (ｒ=-0.38), between Functional Assessment Staging (FAST) and the K-SIB (ｒ=-0.560). Significant correlations were found between K-SIB and other cognitive and non-cognitive scores (p<0.01). The correlation coefficients were high for interrater reliability (ｒ=0.99) and tolerable for test-retest reliability (ｒ=0.51).
Conclusions: The Korean version of SIB appears to be a reliable and valid tool as a staging measure for severe dementia patients.
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KEYWORD
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Severe Dementia, Alzheimer’s disease, Severe Impairment Battery (SIB)
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