Table 2.
ANOVA of age and sex interactions of various WM indices.
| AGE AND SEX INTERACTION (BETWEEN GROUPS) | SS | df | MS | F | P-VALUE | F CRITICAL |
|---|---|---|---|---|---|---|
| White matter volume | 0.181131 | 5 | 0.036226 | 15.0999 | 2.82E-12 | 2.266984 |
| Fractional anisotropy | 0.004343 | 5 | 0.000869 | 4.158908 | 0.001 | 2.266984 |
| Mean diffusivity | 2.98E-08 | 5 | 5.96E-09 | 12.5604 | 2.15E-10 | 2.266984 |
| Axial diffusivity | 4.01E-08 | 5 | 8.03E-09 | 11.72934 | 9.35E-10 | 2.266984 |
| Radial diffusivity | 2.59E-08 | 5 | 5.71E-09 | 13.32543 | 5.71E-11 | 2.266984 |
| Age interaction | ||||||
| White matter volume | 0.068832 | 2 | 0.034416 | 11.46 | 0.00002 | 3.047096 |
| Fractional anisotropy | 0.002530 | 2 | 0.00127 | 5.890493 | 0.003 | 3.047096 |
| Mean diffusivity | 1.021E-08 | 2 | 5.1E-09 | 8.820833 | 0.0002 | 3.047096 |
| Axial diffusivity | 7.79E-09 | 2 | 3.9E-09 | 4.53604 | 0.01 | 3.047096 |
| Radial diffusivity | 1.18E-08 | 2 | 5.92E-09 | 12.8176 | 0.000006 | 3.047096 |