Table 1.
Pretraining Data: Demographic, Cognitive, and Social Characteristics Including Baseline Outcomes Measures
| Measure | Experimental Treatment n = 242 | Active Control n = 245 |
|---|---|---|
| Demographic | ||
| Age, mean ± SD | 75.6 ± 6.6 | 75.0 ± 6.3 |
| Education, years mean ± SD | 15.7 ± 2.6 | 15.6 ± 2.6 |
| Male, n (%) | 102 (42.1) | 130 (53.1) |
| Caucasian, n (%) | 227 (93.8) | 234 (95.5) |
| First language English, n (%) | 238 (98.3) | 240 (98.0) |
| Cognitive | ||
| Mini-Mental State Examination score, mean ± SD (range 0–30) | 29.1 ± 1.1 | 29.2 ± 1.0 |
| Estimated intelligence quotient score, mean ± SD | 113.7 ± 8.0 | 113.6 ± 8.2 |
| 15-item Geriatric Depression Scale score, mean ± SD (range 0–15) | 1.3 ± 1.6 | 1.3 ± 1.7 |
| Sensory | ||
| Hearing function, 500 Hz mean ± SD | 27.0 ± 10.5 | 26.0 ± 10.4 |
| Tinnitus, n (%) | 46 (19.0) | 52 (21.2) |
| Hearing aid, n (%) | 39 (16.1) | 42 (17.1) |
| Glasses, n (%) | 229 (94.6) | 230 (93.9) |
t-tests were used for continuous variables and chi-square tests for categorical variables.
There were no significant differences between groups with the exception of sex, which was significantly different (P = .02).
SD = standard deviation.