FIG. 2

Annual change scores on the Instrumental Activities of Daily Living Scale (IADLS) and the Physical and Self-Maintenance Scale (PSMS) for Alzheimer patients in a longitudinal study. Change scores on both scales are shown for 172 annual follow-up periods with baseline scores on the Blessed Test of Information, Memory, and Concentration of less than 31. Where points overlap, approximate values have been graphed so that all points are visible. (From ref. 19, with permission. Copyright 1992, American Geriatrics Society.)

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published 2000