Construction and Scoring of Aggregate Functional Status Measures

Volume I

by Anita Stewart, John E. Ware, Robert H. Brook

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Presents information on several aggregate measures of functional status developed for use in a general population such as that enrolled in the Health Insurance Study (HIS). Included in this report are (1) analyses performed on HIS enrollment data from five of the six HIS sites that test the appropriateness of using cumulative scales to aggregate functional status categories (i.e., mobility and physical activities) into more global functional status indexes (comparable data were not available from the sixth site); (2) descriptive statistics on these cumulative indexes based on enrollment data from all six sites; (3) analyses of the relationships among the various global functional status indexes; and (4) a description of an index in which information was combined from two cumulative indexes. Details on how to score all of the aggregate indexes are given in N-1706-1.

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