Table 2.
Mean (Standard Deviation) of Bilateral Cortical and Subcortical Volumes
| Region | NEG n=16 | LOW n=16 | MED n=16 | HIGH n=16 | pa | Post hocs |
|---|---|---|---|---|---|---|
| White matter | 31.7 (2.6) | 30.4 (2.0) | 30.9 (0.88) | 30.7 (2.7) | 0.293 | — |
| Cortical gray matter | 44.7 (2.7) | 46.1 (2.3) | 45.0 (3.2) | 44.3 (3.1) | 0.976 | — |
| Subcortical gray matter | 12.8 (1.0) | 13.1 (1.0) | 12.7 (0.9) | 12.8 (1.0) | 0.863 | — |
| Caudate | 0.50 (0.05) | 0.53 (0.06) | 0.48 (0.06) | 0.43 (0.07) | 0.0005 | High<Neg, Low |
| Thalamus | 1.12 (0.09) | 1.17 (0.13) | 1.09 (0.10) | 1.11 (0.13) | 0.059 | — |
| Putamen | 0.73 (0.07) | 0.75 (0.08) | 0.65 (0.06) | 0.59 (0.10) | 2×10−7 | High, Med<Neg, Low |
| Globus pallidus | 0.21 (0.02) | 0.21 (0.03) | 0.19 (0.03) | 0.16 (0.03) | 4×10−7 | High<Neg, Low, Med |
a
Results of a one-way ANCOVA for group effects with age as a covariate. Significance values in bold survived FDR. Volumes reported as % of intracranial volume.
ANCOVA, analysis of covariance.