Nonmotor Symptoms Groups in Parkinson's Disease Patients: Results of a Pilot, Exploratory Study

Table 3

Variables independently related to categorized factor scores.

Factor	Independent variables	OR (95% CI)	P value
Sleep disorders	Wearing-off	4.18 (1.54–11.34)	.005
Nocturia	Age >69 years	5.45 (1.96–15.17)	.001
Autonomic disturbances	—	—	—
Nocturnal psychosis	LDED >625 mg/day	3.99 (1.39–11.38)	.01
	UPDRS II >9	2.91 (1.02–8.27)	.045
NPS symptoms	UPDRS II+III >26	4.07 (1.44–11.49)	.008
	Non-tricyclic antidepressants	5.85 (1.08–31.53)	.04

LDED: levodopa equivalent daily dose. 95% CI = 95% confidence interval.