Table 1.
Characteristics of ACTIVE control participants at baseline.
| Total Sample (n = 690) | African Americans (n = 190) | Whites (n = 500) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Mean | SD | Mean | SD | Mean | SD | Cohen’s d | t/χ2 | df | p | |
|
| ||||||||||
| Age | 74.05 | 6.06 | 73.26 | 5.75 | 74.34 | 6.15 | −0.18 | 2.10 | 688 | 0.036 |
| Years of Education | 13.37 | 2.70 | 12.74 | 2.44 | 13.61 | 2.76 | −0.33 | 4.05 | 383.841 | <.001 |
| Gender (% female) | 74.05 | - | 82.63 | - | 70.20 | - | - | 10.96 | 1 | <.001 |
| Physical Function | 69.00 | 24.64 | 63.53 | 23.84 | 71.08 | 24.64 | −0.31 | 3.61 | 680 | <.001 |
Note: T-tests show significance of the comparison between African American and White participants; for Gender, a corresponding chi-squared test was used. No covariate adjustment was employed.
1
Degrees of freedom and t-statistic were adjusted for non-homogeneity of variance.