Table 1.

Characteristics of the LIFE cohort at enrollment

Characteristic	Total (N = 424)
Age, yrs
70–74	147 (34.7)
75–79	162 (38.2)
80–89	115 (27.1)
Sex
Female	292 (68.9)
Male	132 (31.1)
Short Performance Physical Battery
≤6	97 (22.9%)
7	80 (18.8%)
8	117 (27.6%)
9	130 (30.7%)
Mean (SD)	7.52 (1.42)
Self-Report Disability Score
1–1.9	392 (92.7)
≥ 2	31 (7.3%)
Mean (SD)	1.36 (0.36)
400 Meter Walk
Success	424 (100%)
Failure	0 (0%)
4 Meter Walk in ≤10 Seconds
Success	415 (97.9%)
Failure	9 (2.1%)
Intervention Assignment
Successful aging	211 (49.8%)
Physical activity	213 (50.2%)