Figure 1. Percentage of subjects whose scores on measures of functional status declined, by treatment group. A indicates Instrumental Activities of Daily Living (Older Americans Research and Services Center Instrument); B, Functional Independence Measure, motor; C, Functional Independence Measure, cognitive; D, Mini-Mental State Examination; E, Functional Status Index, pain; F, Craig Handicap Assessment and Reporting Technique, physical independence; G, Craig Handicap Assessment and Reporting Technique, mobility; H, Craig Handicap Assessment and Reporting Technique, occupation; and I, Craig Handicap Assessment and Reporting Technique, social independence.