Lesion load of PWMLs in the anterior, central, and posterior regionsa
| Grade | Lesion No. (Median and Range) | P Value | ||||
|---|---|---|---|---|---|---|
| Anterior | Central | Posterior | Anterior vs Central | Central vs Posterior | Anterior vs Posterior | |
| I | 0 (0∼0) | 0 (0∼1) | 1 (1∼2) | .32 | <.001b,c | <.001b,c |
| II | 0 (0∼6) | 1 (0∼9) | 5 (3∼12) | .17 | .02b | <.01b,c |
| III | 8 (2∼18) | 24 (5∼38) | 16 (12∼29) | <.01b,c | .37 | .01b,c |
↵a The inter-region comparisons were performed with the Wilcoxon signed rank test after the Friedman test. The anterior region is anterior to the frontal horn of the lateral ventricles. The central region is between the frontal horn and the trigon of the lateral ventricles. The posterior region is posterior to the lateral ventricles.
↵b P <.05.
↵c P < .017 (.05/3), significant after the Bonferroni correction.