Table 2

Mean area/skull area ratios (%) of the four regions of the corpus callosum in patients and controls

Anterior Middle Anterior Middle Posterior Posterior Total
Controls (n=23)1.47 (0.15)0.78 (0.11)0.65 (0.11)1.46 (0.18)4.36 (0.44)
FTD (n=11)0.87 (0.15)2-150 2-151 0.41 (0.10)2-152 0.37 (0.09)1.06 (0.25)2.70 (0.49)
PSP (n=9)1.09 (0.16)0.47 (0.10)0.43 (0.11)1.21 (0.19)3.20 (0.49)
AD (n=16)1.24 (0.26)0.57 (0.13)0.45 (0.15)0.95 (0.19)3.20 (0.55)
  • Values are mean (SD).

  • FTD=Frontotemporal dementia; PSP=progressive supranuclear palsy; AD=Alzheimer's disease.

  • 2-150 p<0.05 v PSP;

  • 2-151 p<0.001v AD;

  • 2-152 p<0.05v AD.

  • Only the posterior region of patients with PSP showed no significant difference (p>0.05) compared with the controls (p<0.001 for all the other comparisons, ANOVA and post hoc Sheffe's analysis).