Table 4. Correlations between neuropsychiatric symptoms of people with Alzheimer's disease and caregiver burden and depression.

	Burden (ZBI)		Depression (BDI)
	r	p-value	r	p-value
Delusions	0.32	0.000	0.28	0.001
Hallucinations	0.31	0.000	0.23	0.008
Agitation/aggression	0.37	<0.0001	0.25	0.003
Dysphoria/depression	0.35	<0.0001	0.22	0.010
Anxiety	0.12	0.231	0.05	0.593
Euphoria/elation	0.26	0.003	0.21	0.016
Apathy	0.23	0.008	0.18	0.04
Disinhibition	0.21	0.016	0.09	0.304
Irritability	0.33	0.000	0.12	0.167
Aberrant motor behavior	0.17	0.048	0.17	0.054
Nighttime behavior disturbances	0.24	0.005	0.23	0.008
Appetite and eating change	0.11	0.211	0.06	0.459
NPSs (total)	0.44	<0.0001	0.32	0.000

ZBI: Zarit Burden Interview; BDI: Beck Depression Inventory; r: Spearman's rank correlation coefficient; NPSs: neuropsychiatric symptoms.