Stability of performance of activities of daily living using the MDS.

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Abstract
The Minimum Data Set (MDS) requires assessment of performance of activities of daily living (ADLs) by newly admitted nursing home residents over all shifts for a 7-day period, for a total of 21 assessments. This study evaluated within-subject equivalence of multiple assessments of 42 residents' admission MDS ADL performance. Friedman two-way analysis of variance for ranks documented no significant within-subject differences among repeated measurements for all 13 MDS ADL variables. Thus, fewer than 21 assessments may accurately assess ADL performance.