TABLE 2.
Results of the exploratory factor analysisa
| Factor loadings | ||
|---|---|---|
| Behavior variables | F1 | F2 |
| Utilization behavior | 0.97 | –0.07 |
| Perseveration | 0.96 | –0.09 |
| Repetitive movements | 0.31 | –0.09 |
| Compulsive eating | 0.83 | –0.14 |
| Emotional outburst | 0.93 | –0.04 |
| Dancing | 0.87 | 0.27 |
| Self‐talking | 0.68 | 0.24 |
| Inappropriate action | 0.44 | 0.69 |
| Singing | –0.06 | 0.77 |
| Aggressive behavior toward investigator | –0.09 | 0.74 |
| Familiar behavior toward investigator | –0.17 | 0.67 |
| Lack of decorum | 0.05 | 0.70 |
aValues are the factor loadings of the EFA in bvFTD patients and HC (N = 30). Factor loadings represent correlation coefficients between the behavioral items and the extracted behavioral factors (or patterns) F1 and F2. Coefficients in bold denote the highest loading (among the two factors) for each item. The calculation of individual scores on F1 and F2 takes account of all the factor loadings on F1 and F2 respectively.
Abbreviations: bvFTD, behavioral variant frontotemporal dementia; EFA, exploratory factor analysis; HC, healthy controls.