Table 1. Baseline Characteristics of Study Participants by Age-Stereotype Groups.
| Age Stereotypes | ||||
|---|---|---|---|---|
| Overall (n = 598) | Positive (n = 232) | Negative (n = 366) | P Valuea | |
| Age, mean (SD), y | 79 (5.2) | 79 (5.1) | 79 (5.4) | .91 |
| Female, No. (%) | 378 (63.2) | 230 (62.8) | 148 (63.8) | .81 |
| Nonwhite race/ethnicity, No. (%)b | 49 (8.2) | 22 (9.5) | 27 (7.4) | .36 |
| Physically frail, No. (%) | 267 (44.7) | 99 (42.7) | 168 (45.9) | .44 |
| Education, mean (SD), y | 12 (2.8) | 12 (2.7) | 12 (2.9) | .24 |
| Chronic conditions, mean (SD) | 2 (1.2) | 2 (1.3) | 2 (1.2) | .34 |
| Mini-Mental State Examination score, mean (SD) | 27 (2.5) | 27 (2.5) | 27 (2.5) | .67 |
| Depression, No. (%)c | 82 (13.7) | 25 (10.8) | 57 (15.8) | .10 |
| Lives alone, No. (%) | 236 (39.5) | 93 (40.1) | 143 (39.1) | .80 |
a
The Wilcoxon rank-sum was used to evaluate differences in means. The χ2 and Fisher exact tests were used to evaluate differences in percentages.
b
Ethnic and racial groups were self-determined according to US Census categories.
c
Defined as Center for Epidemiologic Studies Depression Scale score of 20 or greater.