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. Author manuscript; available in PMC: 2023 Jan 9.
Published in final edited form as: N Engl J Med. 1995 Mar 2;332(9):556–561. doi: 10.1056/NEJM199503023320902

Table 1.

Presence and Type of Disability at Four Years of Followup, According to Scores on Base-Line Measures of Performance.

TEST AND SCORE* STATUS AT FOUR YEARS
NO DISABILITY MOBILITY-RELATED DISABILITY DISABILITY IN ADL†
percent of subjects
8-ft (2.4-m) walk
 1
 2
 3
 4		 35.6
59.9
71.8
80.4		 31.1
24.6
19.9
13.5		 33.3
15.5
8.3
6.2
Repeated rising from a chair
 1
 2
 3
 4		 59.7
67.0
74.9
79.3		 25.3
21.9
16.4
13.9		 15.1
11.1
8.7
6.8
Standing balance
 1
 2
 3
 4		 37.7
53.4
67.8
77.7		 31.2
30.5
20.9
15.4		 31.2
16.0
11.3
6.9
*

Scores ranged from 1 to 4, with 1 indicating the poorest performance, and 4 the best performance. P<0.001 for the association between the scores on each performance measure and subsequent disability status, by the chi-square test.

†

ADL denotes activities of daily living.