Table 1.
Comparison of baseline demographic and clinical variables for the original sample, drop-out sample, and present sample.
| Baseline variables | Original sample (N=345) | Drop-out sample (N=111) | Present sample (N=234) | p value |
|---|---|---|---|---|
| Age (mean±SD)* | 70.35 (7.12) | 69.69 (7.86) | 70.67 (6.74) | 0.490 |
| Sex - female (N, %)** | 241 (69.9) | 81 (73) | 160 (68.4) | 0.685 |
| Education (mean±SD)* | 9.00 (5.47) | 9.86 (5.84) | 8.59 (5.25) | 0.133 |
| Successful agers | 214 (62) | 71 (64) | 143 (61.1) | 0.760 |
| Family income (mean±SD)* | 22.48 (30.09) | 24.88 (35.43) | 22.48 (30.07) | 0.639 |
| Age of father at death (mean±SD)* | 64.50 (16.26) | 60.33 (20.00) | 64.61 (16.24) | 0.904 |
| Age of mother at death (mean±SD)* | 73.39 (17.02) | 70.25 (2.87) | 73.49 (17.29) | 0.933 |
| MADRS (mean±SD)* | 6.07 (7.37) | 5.86 (8.40) | 5.77 (7.28) | 0.697 |
*
ANOVA analysis of variance;
**
Chi-square association test; MADRS (Montgomery-Asberg Depression Rating Scale).