Table 5. Scores (mean±standard deviation) on the Neuropsychiatric Inventory, according to clinical group.

Neuropsychiatric Inventory	SCD (n=15)	MCI (n=45)	Dementia (n=31)
Hallucinations	0.0±0.0	0.0±0.0	0.4±1.7
Delusions	0.0±0.0	0.0±0.0	0.4±1.5
Apathy	0.2±0.6	1.2±2.2a	4.3±4.7
Dysphoria	2.5±3.2	2.5±3.55	4.9±3.9
Agitation/aggression	0.1±0.3	0.6±2.1a	3.2±4.3
Anxiety	3.4±4.7	2.8±3.6	5.4±4.7
Disinhibition	0.1±0.3	0.19±0.55	0.4±1.2
Irritability/lability	1.4±2.7	1.7±3.4	3.3±4.6
Aberrant motor activity	0.0±0	0.03±2.15	0.6±2.0
Euphoria	0.0±0	0.03±2.15	0.3±1.5
Appetite and eating abnormalities	0.5±1.7	0.85±2.3a	3.7±4.8
Night-time behavioral disturbances	0.0±0	0.6±2.26	1.3±3.4
Total score	11.1±16.5a	10.2±13.2a	28.4±21.6

MCI: mild cognitive impairment; SCD: subjective cognitive decline;

^asignificant difference vs dementia group (p<0.004; Mann-Whitney test).