Table 3.
Summary of hierarchical regression analysis for variables predicting brain volumes in the MRI subsample (N = 703)
| Outcome measure (brain volumes)
|
||||||||
|---|---|---|---|---|---|---|---|---|
| Predictor | B | SE (B) | β | Predictor | B | SE (B) | β | |
| CES-D score | Total brain volume | 1.033 | 2.023 | 0.018 | CES-D score | −0.729 | 1.975 | −0.013 |
| Reading | 12.492 | 3.419 | 0.131*** | Education | 2.126 | 0.815 | 0.107** | |
| CES-D × reading | 3.811 | 2.072 | 0.065 | CES-D × education | −0.329 | 0.405 | −0.028 | |
| R2 | 0.26 | R2 | 0.25 | |||||
| CES-D score | WMH volume | 0.039 | 0.021 | 0.076 | CES-D score | 0.031 | 0.021 | 0.059 |
| Reading | −0.041 | 0.036 | −0.047 | Education | 0.009 | 0.008 | 0.052 | |
| CES-D × reading | 0.000 | 0.022 | 0.001 | CES-D × education | 0.002 | 0.004 | 0.021 | |
| R2 | 0.049 | R2 | 0.04 | |||||
| CES-D score | Total hippocampal volume | −0.002 | 0.017 | −0.004 | CES-D score | −0.013 | 0.017 | −0.031 |
| Reading | 0.068 | 0.029 | 0.097** | Education | 0.009 | 0.007 | 0.058 | |
| CES-D × reading | −0.016 | 0.017 | −0.036 | CES-D × education | −0.005 | 0.003 | −0.052 | |
| R2 | 0.062 | R2 | 0.06 | |||||
Note: All analyses were controlled for age, gender, and race. Reading, education, and CES-D scores were centered at their means. CES-D, Center for Epidemiologic Studies Depression Scale; WMH, white matter hyperintensities; MRI, magnetic resonance imaging.
p < 0.05.
p < 0.01.
p < 0.001.