Table 2.

Correlations between diffusion tensor–derived parameters and age in the older subject group, before and after covarying for sex and white matter volume

Region of interestBefore covaryingCovarying for volume/sex
Pearson’s rp ValuePearson’s rp Value
Correlations significant at the p < 0.05 level, after covarying, are shown in boldface type.
FA = fractional anisotropy.
Total white matter
Anterior white matter
Middle white matter
Posterior white matter