Table 1

Participant demographics

ControlbvFTDFTD-ALSANOVA, t-test or χ2P value
Number302320
Sex male:female9:2114:912:8χ2=6.60.04
Age at test mean (SD)59 (8)60 (7)65 (8)F(2,72)=3.320.03
Years of education mean (SD)14 (3)12 (3)13 (3)F(2,72)=3.860.03
Duration of symptoms
Mean years (SD)
n/a5 (4)3 (1)t=2.60.02
Disease severity* mean (SD)n/a9.3 (2.8)9.5 (2.8)t=−0.260.80
  • *Modified Clinical Dementia Rating scale,17 mean sum of boxes.

  • ANOVA, analysis of variance; bvFTD, behavioural variant FTD; FTD, frontotemporal dementia.