Table 7.
Final models from mixed model analysis of radial diffusivity values for group, age, and time of scan for left and right hemisphere pathways
| Within‐subjects effects | Between‐subjects effects | |||||
|---|---|---|---|---|---|---|
| Group × time × age | Time × age | Time × group | Time | Group | Age | |
| Pathway | df (1,30) F (p) | df (1,83) F (p) | df (1,30) F (p) | df (1,30) F (p) | df (1,83) F (p) | df (1,83) F (p) |
| Superior longitudinal | ||||||
| Left | 13.33 (0.001) | 22.66 (<0.0001) | 17.18 (<0.0001) | 14.76 (0.001) | ||
| Right | 6.51 (0.016) | 18.59 (0.0001) | 15.66 (0.0002) | 18.73 (<0.0001) | ||
| Inferior longitudinal | ||||||
| Left | 9.48 (0.004) | 26.76 (<0.0001) | 8.21 (0.005) | |||
| Right | 4.35 (0.045) | |||||
| Inferior frontal occipital | ||||||
| Left | 8.43 (0.007) | 12.47 (0.002) | 30.56 (<0.0001) | 7.93 (0.006) | ||
| Right | 37.72 (<0.0001) | 29.46 (<0.0001) | 16.70 (<0.0001) | |||
| Uncinate | ||||||
| Left | 19.53 (0.0001) | 27.72 (<0.0001) | 29.89 (<0.0001) | 5.17 (0.026) | ||
| Right | 29.87 (<0.0001) | 30.99 (<0.0001) | 8.86 (0.004) | |||
| Cingulum | ||||||
| Left | 11.68 (0.002) | |||||
| Right | 13.65 (0.0008) | 30.18 (<0.0001) | 21.22 (<0.0001) | 15.81 (0.0001) | ||
| Cingulum hippocampal | ||||||
| Left | 11.26 (0.002) | 12.43 (0.001) | 17.14 (<0.0001) | |||
| Right | 29.58 (<0.0001) | 22.00 (<0.0001) | 19.72 (<0.0001) | |||
| Corticospinal | ||||||
| Left | ||||||
| Right | 33.48 (<0.0001) | 24.55 (<0.0001) | 7.37 (0.008) | |||
Note: Values in bold survived Bonferroni correction at a critical value of 0.007.