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

Table 4

6-month NPI results; in the first and third rows it has been reported the within group comparison with baseline.

Subitems NPI	Number of patients/48 (%) within groups; (6 months versus baseline)	Frequency × severity	Caregiver distress
hallucinations	16 (33%) ()	2	1 (NS)
Delusions	7 (15%) ()	1	1 (NS)
Agitation/aggression	4 (8%) (NS)	2	1 (NS)
Dysphoria/depression	17 (35%) ()	3	1 ()
Anxiety	20 (42%) ()	4	1 ()
Irritability	4 (8%) ()	3	1 ()
Disinhibition	1 (2%) ()	2	1 ()
Euphoria	2 (4%) (NS)	2	1 ()
Apathy	30 (62%) ()	8	4 (NS)
Aberrant motor behavior	2 (4%) (NS)	2	2 ()
Sleep behavior change	4 (8%) ()	2	3 ()
Appetite change	1 (2%) ()	2	2 ()