Table 1.

Characteristics of the study sample, mean ± SD

CharacteristicPSPFTDADDLBOther diseasesF ratio
* Indicates the number of subjects who had the test.
p = 0.001.
p = 0.005.
§ p = 0.03.
p = 0.0005.
PSP = progressive supranuclear palsy; FTD = frontotemporal lobe dementia; DLB = dementia with Lewy bodies; ADLs = activities of daily living.
Male/female6/25/34/63/53/3
Age at study entry, y68.4 ± 7.156.7 ± 9.671.6 ± 6.670.6 ± 6.171.6 ± 6.75.44
Age at onset, y65.5 ± 7.353.5 ± 9.067.3 ± 7.267.3 ± 6.867.7 ± 5.64.32
Education13.5 ± 3.113.2 ± 1.711.9 ± 4.314.5 ± 5.613.0 ± 3.30.51
Mini-Mental State Examination (n = 35)*22.4 ± 6.122.8 ± 6.215.7 ± 6.115.6 ± 3.920.1 ± 7.92.84§
Mattis Dementia Rating Scale (n = 33)*89.5 ± 28126.6 ± 12100.7 ± 2299.0 ± 20103.3 ± 312.20
Clinical Dementia Rating (n = 40)*1.1 ± 0.31.11 ± 0.11.5 ± 0.71.6 ± 0.51.1 ± 0.52.57
Blessed Rating Scale for ADLs (n = 33)*7.2 ± 3.36.2 ± 2.79.2 ± 3.27.0 ± 2.68.5 ± 5.30.95
Hachinski Ischemic Scale (n = 34)*4.0 ± 3.03.2 ± 1.22.6 ± 1.72.2 ± 1.83.0 ± 2.60.73
Hamilton Depression Rating Scale (n = 33)*12.4 ± 7.59.8 ± 5.011.2 ± 6.07.3 ± 4.410.6 ± 8.10.66
New York University Scale (n = 34)*48.6 ± 2510.2 ± 1113.8 ± 8.221.8 ± 12.741.5 ± 256.75