Course of Cognitive Functioning in Institutionalized Persons with Moderate to Severe Dementia: Evidence from the Severe Impairment Battery Short Version

Evelien T. Wolf, Wouter D. Weeda, Roland B. Wetzels, Jos F.M. De Jonghe, Raymond C.T.M. Koopmans

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Objectives: To adequately monitor the course of cognitive functioning in persons with moderate to severe dementia, relevant cognitive tests for the advanced dementia stages are needed. We examined the ability of a test developed for the advanced dementia stages, the Severe Impairment Battery Short version (SIB-S), to measure cognitive change over time. Second, we examined type of memory impairment measured with the SIB-S in different dementia stages. Methods: Participants were institutionalized persons with moderate to severe dementia (N = 217). The SIB-S was administered at 6-month intervals during a 2-year period. Dementia severity at baseline was classified according to Global Deterioration Scale criteria. We used mixed models to evaluate the course of SIB-S total and domain scores, and whether dementia stage at baseline affected these courses. Results: SIB-S total scores declined significantly over time, and the course of decline differed significantly between dementia stages at baseline. Persons with moderately severe dementia declined faster in mean SIB-S total scores than persons with moderate or severe dementia. Between persons with moderate and moderately severe dementia, there was only a difference in the rate of decline of semantic items, but not episodic and non-semantic items. Conclusions: Although modest floor and slight ceiling effects were noted in severe and milder cases, respectively, the SIB-S proved to be one of few available adequate measures of cognitive change in institutionalized persons with moderate to severe dementia. (JINS, 2019, 25, 204-214).

LanguageEnglish
Pages204-214
Number of pages11
JournalJournal of the International Neuropsychological Society
Volume25
Issue number2
Early online date20 Nov 2018
DOIs
Publication statusPublished - Feb 2019

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Institutionalization
Dementia
Aptitude
Semantics

Keywords

  • Cognition
  • Cognitive decline
  • Dementia
  • Dementia stages
  • Institutionalization
  • Longitudinal studies
  • Neuropsychological tests

Cite this

@article{9836ed396da04c44b08ea2e974eeedf4,
title = "Course of Cognitive Functioning in Institutionalized Persons with Moderate to Severe Dementia: Evidence from the Severe Impairment Battery Short Version",
abstract = "Objectives: To adequately monitor the course of cognitive functioning in persons with moderate to severe dementia, relevant cognitive tests for the advanced dementia stages are needed. We examined the ability of a test developed for the advanced dementia stages, the Severe Impairment Battery Short version (SIB-S), to measure cognitive change over time. Second, we examined type of memory impairment measured with the SIB-S in different dementia stages. Methods: Participants were institutionalized persons with moderate to severe dementia (N = 217). The SIB-S was administered at 6-month intervals during a 2-year period. Dementia severity at baseline was classified according to Global Deterioration Scale criteria. We used mixed models to evaluate the course of SIB-S total and domain scores, and whether dementia stage at baseline affected these courses. Results: SIB-S total scores declined significantly over time, and the course of decline differed significantly between dementia stages at baseline. Persons with moderately severe dementia declined faster in mean SIB-S total scores than persons with moderate or severe dementia. Between persons with moderate and moderately severe dementia, there was only a difference in the rate of decline of semantic items, but not episodic and non-semantic items. Conclusions: Although modest floor and slight ceiling effects were noted in severe and milder cases, respectively, the SIB-S proved to be one of few available adequate measures of cognitive change in institutionalized persons with moderate to severe dementia. (JINS, 2019, 25, 204-214).",
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Course of Cognitive Functioning in Institutionalized Persons with Moderate to Severe Dementia : Evidence from the Severe Impairment Battery Short Version. / Wolf, Evelien T.; Weeda, Wouter D.; Wetzels, Roland B.; De Jonghe, Jos F.M.; Koopmans, Raymond C.T.M.

In: Journal of the International Neuropsychological Society, Vol. 25, No. 2, 02.2019, p. 204-214.

Research output: Contribution to JournalArticleAcademicpeer-review

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T2 - Journal of the International Neuropsychological Society

AU - Wolf, Evelien T.

AU - Weeda, Wouter D.

AU - Wetzels, Roland B.

AU - De Jonghe, Jos F.M.

AU - Koopmans, Raymond C.T.M.

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