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Cut-off for the Life-Space Assessment in persons with cognitive impairment
Phoebe Ullrich1, Christian Werner1,2, Tobias Eckert1
1AGAPLESION Bethanien Hospital Heidelberg, Geriatric Center at the University of Heidelberg, Rohrbacher Str. 149, 69126, Heidelberg, Germany.
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.
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