Table 1.
Main characteristics of the study population
| Characteristic | Attrition or loss to follow-up n=669 |
Included in the analysis sample n=2406 |
|---|---|---|
| Age, mean (SD) | 74.5 (2.9) | 74.1 (2.9) a |
| Gender,% female | 49.0 | 52.2 |
| Race,% white | 46.6 | 61.6 b |
| Study site,% Pittsburgh | 47.7 | 50.2 |
| Marital status,% married | 52.0 | 58.4 c |
| Smoking status,% never | 39.8 | 45.1 c |
| Alcohol use,% current | 47.0 | 50.4 |
| Body mass index, mean (SD) | 27.4 (5.1) | 27.4 (4.7) |
| Trying to change weight,% yes | 23.8 | 34.0 b |
| Number of chronic diseases,% [mt]2 |
45.0 | 42.0 |
| Antidepressant use,% yes | 2.7 | 2.4 |
| Depressed mood | ||
| T1 CES-D score, mean (SD) |
5.5 (5.5) | 4.5 (5.2) d |
| % T1 depressed mood | 5.9 | 4.4 |
| T4 CES-D score, mean (SD) |
6.5(6.4) | |
| % T4 depressed mood | 9.5 | |
| % T1 and T4 depressed mood |
2.3 | |
| Weight change over 3-year period,% |
||
| Stable | 70.7 | |
| Loss | 18.1 | |
| Gain | 11.2 | |
|
Number of interim hospitalizations,% |
||
| None | 65.2 | |
| 1–2 | 29.2 | |
| ≥3 | 5.6 | |
| Incident mobility limitation,% yes | 28.3 |
a
T-test significant, (df=3073, p<0.01);
b
Pearson chi-square significant (df=1);
c
Pearson chi-square significant (df=1)
d
T-test significant, (df=3047, p<0.01).