Psychometric Properties of the Proxy-Reported Life-Space Assessment in Institutionalized Settings (LSA-IS-Proxy) for Older Persons with and without Cognitive Impairment

Klaus Hauer, Phoebe Ullrich, Patrick Heldmann, Laura Bauknecht, Saskia Hummel, Bastian Abel, Juergen M. Bauer, Sarah E. Lamb and Christian Werner
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Klaus Hauer: Agaplesion Bethanien Hospital Heidelberg/Geriatric Center at the Heidelberg University, and Center of Geriatric Medicine, Heidelberg University, 69126 Heidelberg, Germany
Phoebe Ullrich: Agaplesion Bethanien Hospital Heidelberg/Geriatric Center at the Heidelberg University, and Center of Geriatric Medicine, Heidelberg University, 69126 Heidelberg, Germany
Patrick Heldmann: Network Aging Research (NAR), Heidelberg University, 69115 Heidelberg, Germany
Laura Bauknecht: Medical Faculty, Heidelberg University, 69120 Heidelberg, Germany
Saskia Hummel: Medical Faculty, Heidelberg University, 69120 Heidelberg, Germany
Bastian Abel: Agaplesion Bethanien Hospital Heidelberg/Geriatric Center at the Heidelberg University, and Center of Geriatric Medicine, Heidelberg University, 69126 Heidelberg, Germany
Juergen M. Bauer: Agaplesion Bethanien Hospital Heidelberg/Geriatric Center at the Heidelberg University, and Center of Geriatric Medicine, Heidelberg University, 69126 Heidelberg, Germany
Sarah E. Lamb: Institute of Health Research, University of Exeter, South Cloisters, St. Luke’s Campus, Exeter EX1 2LU, UK
Christian Werner: Agaplesion Bethanien Hospital Heidelberg/Geriatric Center at the Heidelberg University, and Center of Geriatric Medicine, Heidelberg University, 69126 Heidelberg, Germany

IJERPH, 2021, vol. 18, issue 8, 1-17

Abstract: (1) Background: Life-space mobility assessments for institutionalized settings are scarce and there is a lack of comprehensive validation and focus on persons with cognitive impairment (CI). This study aims to evaluate the psychometric properties of the Life-Space Assessment for Institutionalized Settings by proxy informants (LSA-IS-proxy) for institutionalized, older persons, with and without CI. (2) Methods: Concurrent validity against the self-reported version of the LSA-IS, construct validity with established construct variables, test-retest reliability, sensitivity to change during early multidisciplinary geriatric rehabilitation treatment, and feasibility (completion rate, floor/ceiling effects) of the LSA-IS-proxy, were assessed in 94 hospitalized geriatric patients (83.3 ± 6.1 years), with and without CI. (3) Results: The LSA-IS-proxy total score showed good-to-excellent agreement with the self-reported LSA-IS (Intraclass Correlations Coefficient, ICC 3,1 = 0.77), predominantly expected small-to-high correlations with construct variables ( r = 0.21–0.59), good test–retest reliability (ICC 3,1 = 0.74), significant sensitivity to change over the treatment period (18.5 ± 7.9 days; p < 0.001, standardized response mean = 0.44), and excellent completion rates (100%) with no floor/ceiling effects. These results were predominantly confirmed for the sub-scores of the LSA-IS-proxy and were comparable between the sub-groups with different cognitive status. (4) Conclusions: The LSA-IS-proxy has proven to be feasible, valid, reliable, and sensitive to change in hospitalized, geriatric patients with and without CI.

Keywords: clinical trial methods; cognitive impairment; life-space mobility; assessment; exercise; physical activity; validation; hospitalization (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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