Characteristic Completers N=2035 Non-participants N=990 Deceased N=3080
Age (years) 72.1 (5.2) 72.2 (5.0) 77.6
Cognition score 0.31 (0.64) 0.22 (0.67) -0.33 (0.99)
Physical function 11.05 (3.20) 9.00 (4.10) 6.7 (3.8)
CES-D score 1.42 (1.90) 1.38 (1.82) 0.97 (1.53)
Gender
Females
Males

1307 (64%)
728 (36%)

607 (61%)
383 (39%)

1796 (58%)
1284 (41%)
Race
Whites
Blacks

735 (36%)
1300 (64%)

377 (38%)
613 (62%)

1221 (40%)
1859 (60%)
Education (years)
0-9
10-12
13-16
≥17

386 (19%)
826 (41%)
632 (31%)
191 (9%)

195 (20%)
431 (44%)
289 (29%)
75 (8%)

917 (30%)
1256 (41%)
716 (23%)
191 (6%)
Table 1: Descriptive measures of demographic and mental health at baseline among the completers, non-participants and deceased. Means and standards deviation are provided for age, cognition score, physical function and CES-D score. Number of participants and percentages are presented for gender, race, and education.