A Factor Analytic Approach to Symptom Patterns in Dementia
Table 4
A four-factor analysis of 30 clinical items scored in 190 patients with neuropathological diagnosis of VaD, AD, mixed AD/VaD and FTD. Factor loadings ≥0.25 are in bold. Factor loadings ≤−0.24 are set in italic.
Factor 1
Factor 2
Factor 3
Factor 4
Vascular
Frontal
Alz.type
Mood
History of stroke
0.71
−0.04
0.02
−0.03
Stepwise progression
0.67
0.03
−0.07
0.14
Focal neurological symptoms
0.74
0.20
0.00
0.01
Abrupt onset
0.75
0.02
−0.04
−0.04
Focal neurological signs
0.64
0.09
0.12
−0.17
Evidence of associated atherosclerosis
0.49
−0.12
0.04
0.00
History of hypertension
0.48
−0.06
0.06
−0.03
Fluctuating course
0.49
−0.22
−0.07
0.08
Depression
0.04
0.11
−0.11
0.72
Somatic complaints
0.01
−0.10
−0.05
0.55
Relative preservation of personality
0.04
−0.49
−0.13
0.21
Slow progression
−0.79
−0.13
0.11
−0.04
Echolalia, late mutism, amimia (during the course)