Cut-off for the Life-Space Assessment in persons with cognitive impairment

Phoebe Ullrich; Christian Werner; Tobias Eckert; Martin Bongartz; Rainer Kiss; Manuel Feißt; Kim Delbaere; Jürgen M Bauer; Klaus Hauer

doi:10.1007/s40520-018-1062-2

Cut-off for the Life-Space Assessment in persons with cognitive impairment

Aging Clin Exp Res. 2019 Sep;31(9):1331-1335. doi: 10.1007/s40520-018-1062-2. Epub 2018 Nov 7.

Authors

Phoebe Ullrich¹, Christian Werner^{1

2}, Tobias Eckert¹, Martin Bongartz¹, Rainer Kiss^{1

3}, Manuel Feißt⁴, Kim Delbaere^{5

6}, Jürgen M Bauer^{1

2}, Klaus Hauer^{7

8}

Affiliations

¹ AGAPLESION Bethanien Hospital Heidelberg, Geriatric Center at the University of Heidelberg, Rohrbacher Str. 149, 69126, Heidelberg, Germany.
² Center of Geriatric Medicine, University of Heidelberg, 69117, Heidelberg, Germany.
³ FHM Bielefeld, University of Applied Sciences, 33602, Bielefeld, Germany.
⁴ Institute of Medical Biometry and Informatics, University of Heidelberg, 69120, Heidelberg, Germany.
⁵ Neuroscience Research Australia, Sydney, NSW, Australia.
⁶ School of Public Health and Community Medicine, University of New South Wales, Sydney, NSW, Australia.
⁷ AGAPLESION Bethanien Hospital Heidelberg, Geriatric Center at the University of Heidelberg, Rohrbacher Str. 149, 69126, Heidelberg, Germany. khauer@bethanien-heidelberg.de.
⁸ Center of Geriatric Medicine, University of Heidelberg, 69117, Heidelberg, Germany. khauer@bethanien-heidelberg.de.

PMID: 30406358
DOI: 10.1007/s40520-018-1062-2

Abstract

Background: A version of the Life-Space Assessment in persons with cognitive impairment (LSA-CI) has recently been developed.

Aims: To establish a cut-off value for the newly developed Life-Space Assessment in persons with cognitive impairment (LSA-CI).

Methods: In a cross-sectional study including 118 multimorbid, older persons with cognitive impairment, life-space mobility (LSM) was documented by the LSA-CI. The analysis was rationalized by Global Positioning System (GPS)-based measures of spatial distance from home. A receiver-operating characteristic (ROC) curve was created and the cut-off point for the LSA-CI was identified with the Youden's Index.

Results: ROC curve analysis indicated a critical value of 26.75 (within a range of 0-90) to differentiate between low and high LSM with a sensitivity of 78.1% and specificity of 84.2%.

Discussion: Diagnostic interpretation of the ROC curves revealed that low and high LSM groups can be differentiated with the proposed cut-off.

Conclusions: The proposed LSA-CI cut-off score can be recommended to tailor clinical interventions and evaluate change over time.

Keywords: Cognitive impairment; Cut-off; Life-Space; Mobility.

Publication types

Validation Study

MeSH terms

Activities of Daily Living
Aged
Aged, 80 and over
Cognitive Dysfunction*
Cross-Sectional Studies
Disability Evaluation*
Female
Geriatric Assessment / methods*
Humans
Male
Multimorbidity
ROC Curve
Sensitivity and Specificity

Grants and funding

80221-208-009-01-01/Municipal Association for Youth and Social Affairs in Baden-Württemberg (Kommunalverband für Jugend und Soziales Baden-Württemberg)