Scaling ADLs within the MDS

TitleScaling ADLs within the MDS
Publication TypeJournal Article
Year of Publication1999
AuthorsMorris J.N, Fries B.E, Morris S.A
JournalJournals of Gerontology Series A-Biological Sciences & Medical Sciences
Date PublishedNov
Accession Number10619316
Keywords*Activities of Daily Living, Aged, Human, Support, Non-U.S. Gov't, Support, U.S. Gov't, P.H.S.

BACKGROUND: Dependency in activities of daily living (ADLs) is a reality within nursing homes, and we describe ADL measurement strategies based on items in the Minimum Data Set (MDS) and the creation and distributional properties of three ADL self-performance scales and their relationship to other measures. METHODS: Information drawn from four data sets for a multistep analysis was guided by four study objectives: (1) to identify the subcomponents of ADLs that are present in the MDS battery; (2) to demonstrate how these items could be aggregated within hierarchical and additive ADL summary scales; (3) to describe the baseline and longitudinal distributional properties of these scales in a large, seven-state MDS database; and (4) to evaluate how these scales relate to two external criteria. RESULTS: Prevalence and factor structure findings for seven MDS ADL self-performance variables suggest that these items can be placed into early, middle, and late loss ADL components. Two types of summary ADL self-performance measures were created: additive and hierarchical. Distributional properties of these scales are described, as is their relationship to two external ADL criteria that have been reported in prior studies: first as an independent variable predicting staff time involved in resident care; second as a dependent variable in a study of the efficacy of two programs to improve resident functioning. CONCLUSIONS: The new ADL summary scales, based on readily available MDS data, should prove useful to clinicians, program auditors, and researchers who use the MDS functional self-performance items to determine a resident's ADL status.


Short TitleJ Gerontol A Biol Sci Med Sci
Alternate JournalJ Gerontol A Biol Sci Med Sci