Table 1.

NPI symptom score sample characteristics computed from trial data

NPI symptoms	Sample mean	Sample SD	Sample skewness
Delusions	0.52	1.63	4.36
Hallucinations	0.21	0.91	6.41
Agitation	0.82	1.74	2.94
Irritability	1.05	1.99	2.51
Depression	1.08	1.91	2.38
Anxiety	1.06	2.03	2.63
Euphoria	0.16	0.91	8.25
Disinhibition	0.37	1.35	5.30
Aberrant motor behavior	1.00	2.22	2.57
Apathy	2.09	2.87	1.27
Sleeping disorder	0.87	2.10	2.73
Eating disorder	1.03	2.40	2.52

NPI, Neuropsychiatric Inventory; SD, standard deviation.