Table 3.
Correlation with ZBI (Pearson r)
| bvFTH (n = 20) | SD (L > R) (n = 13) | SD (R > L) (n = 10) | |
|---|---|---|---|
| Age | −0.091 | −0.219 | 0.511 |
| Education | −0.092 | 0.305 | −0.060 |
| Duration of illness | 0.036 | 0.154 | 0.254 |
| MMSE score | −0.418† | −0.405 | −0.621† |
| PSMS score | −0.563* | −0.110 | −0.594† |
| Lawton IADL score (out of 5 points) | −0.519* | −0.342 | −0.834* |
| NPI score (subscale) | 0.748** | 0.790** | 0.818** |
| Delusions | - | - | - |
| Hallucinations | - | - | - |
| Agitation/aggression | 0.602 | 0.432 | 0.530 |
| Depression/dysphoria | 0.367 | 0.842** | −0.007 |
| Anxiety | 0.246 | - | 0.592 |
| Elation/euphoria | 0.352 | - | - |
| Apathy/indifference | 0.531 | 0.379 | 0.668 |
| Disinhibition | 0.449 | 0.144 | 0.476 |
| Irritability/lability | 0.156 | 0.394 | 0.655 |
| Aberrant motor behavior | 0.295 | 0.267 | - |
ZBI, Zarit Burden Interview; bvFTD, behavioral variant frontotemporal dementia; SD, semantic dementia; MMSE, Mini-Mental State Examination; PSMS, Physical Self-Maintenance Scale; IADL, instrumental activities of daily living; NPI, Neuropsychiatric Inventory; -, excluded from analysis because <3 patients had symptoms.
**
p < 0.01
*
p < 0.05
†
p < 0.1; Bonferroni correction was conducted for each NPI subscale.