Rivastigmine as a Symptomatic Treatment for Apathy in Parkinson’s Dementia Complex: New Aspects for This Riddle

Table 3

Baseline NPI results.

Subitems NPI	Number of patients/48 (%)	Frequency × severity	Caregiver distress
hallucinations	20 (42%)	2	1
Delusions	10 (21%)	1	1
Agitation/aggression	5 (10%)	2	1
Dysphoria/depression	22 (46%)	4	2
Anxiety	26 (54%)	6	2
Irritability	7 (15%)	4	2
Disinhibition	2 (4%)	2	2
Euphoria	3 (6%)	2	2
Apathy	37 (77%)	8	4
Aberrant motor behavior	3 (6%)	2	2
Sleep behavior change	6 (12%)	4	3
Appetite change	2 (4%)	2	2