Table 1.
Mean and standard deviations for demographic and cognitive data, and FA and MD tract values.
| SVD (n = 106) | Healthy older adults (n = 35) | Group differences | Group differences excluding ≤ 24 on MMSE | |
|---|---|---|---|---|
| Age | 69.52 (9.75) | 69.63 (9.29) | F = .003, p = .954 | F = .082, p = .776 |
| Sex (m,f) | 70,36 | 22,13 | X2 = .117, p = .732 | X2 = .001, p = .975 |
| Highest education level | 3.14 (2.37) | 5.37 (2.17) | F = 24.28, p < .001 *** | F = 20.42, p < .001 *** |
| Range = 1–9 | Range = 1–9 | |||
| MMSE | 27.74 (2.40) | 29.11 (1.13) | F = 10.76, p = .001 *** | – |
| MMSE excluding scores ≤24 | 28.38 (1.37) | 29.11 (1.13) | – | F = 8.05, p = .005 ** |
| Long-term memory (z-score) | −1.06 (1.27) | 0 (1) | F = 20.19, p < .001 *** | F = 15.06, p < .001 *** |
| Working memory (z-score) | −1.28 (1.06) | 0 (1) | F = 39.80, p < .001 *** | F = 33.77, p < .001 *** |
| FA Right Uncincate | .3479 (.0252) | .3563 (.0261) | F = 2.79, p = .097 | F = 2.09, p = .151 |
| FA Left Uncinate | .3631 (.0219) | .3704 (.0255) | F = 2.62, p = .108 | F = 1.64, p = .203 |
| FA Right Cingulum | .3757 (.0232) | .3795 (.0374) | F = .466, p = .496 | F = .125, p = .724 |
| FA Left Cingulum | .3576 (.0207) | .3637 (.0365) | F = 1.43, p = .234 | F = .770, p = .382 |
| MD Right Uncincate | .00086643 (.000050) | .00082437 (.000050) | F = 17.98, p < .001 *** | F = 16.58, p < .001 *** |
| MD Left Uncinate | .00085750 (.000044) | .00082430 (.000053) | F = 13.22, p < .001 *** | F = 11.65, p = .001 *** |
| MD Right Cingulum | .00081821 (.000043) | .00080110 (.000065) | F = 2.99, p = .086 | F = 1.75, p = .188 |
| MD Left Cingulum | .00080120 (.000042) | .00078451 (.000071) | F = 2.71, p = .103 | F = 1.59, p = .210 |
* p < 05; ** p < .01; *** p < .001; ± not significant after multiple comparison correction.