Table 2.
Brain regions with significant regional cortical thickness differences in MCI with high a3/a2 ratio compared to MCI with low averaged with middle a3/a2 ratio.
| High a3/a2<averaged middle and low a3/a2 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Cluster size (mm2) | Region | Side | Stereotaxc coordinate |
P | Thickness (mm2) |
|||
| x | y | z | High | Low+middle | ||||
| 55 | Precuieus | L | -14 | -48 | 58 | 0.00001 | 1.35 ± 0.14 | 2.57 ± 0.24 |
| 76 | Supra marginal | R | 49 | -29 | 27 | 00.01.00 | 1.53 ± 0.18 | 2.67 ± 0.56 |
| 93 | Inferior parietal | R | 46 | -75 | 10 | 0.001 | 1.54 ± 0.22 | 3.07 ± 0.35 |
Cluster size represents the extension of contiguous significant voxels in the cluster obtained at p < 0.01 uncorrected (cluster size > 30 mm2). Stereotaxic coordinates reveal the position of the most significant voxel of the cluster, and side denotes its localization on the left (L) or right (R) brain hemisphere. Thickness denotes the average cortical thickness and SD values within the cluster in high and low + middle a3/a2 groups. P denotes the significance level of the differences in thickness between groups.