Table 3.

Attribution of Neuropsychiatric Inventory (NPI) domains to Alzheimer’s disease and related conditions (ADC) versus other causes (N varies by individual symptom)

NPI Domain	ADC, n (%)	Non-ADC, n (%)
Depression, n=27	3 (11.1)	24 (88.9)
Anxiety, n=14	2 (14.3)	12 (85.7)
Elation, n=9	2 (22.2)	7 (77.8)
Apathy, n=12	5 (41.7)	7 (58.3)
Disinhibition, n=13	5 (38.5)	8 (61.5)
Irritability, n=17	8 (47.1)	9 (52.9)
Aberrant motor, n=6	4 (66.7)	2 (33.3)
Delusions, n=9	3 (33.3)	6 (66.7)
Hallucinations, n=11	3 (27.3)	8 (72.7)
Aggression, n=13	5 (38.5)	8 (61.5)