Table 3.

Factors associated with poorer health-related quality of life (n = 169)

Variable (at the time of follow-up)	Coefficient	CI 95%	p value
Current ICB	6.998	[1.223; 12.774]	0.018
LEDD	1.647	[0.515; 2.779]	0.005
PD duration	1.494	[0.321; 2.667]	0.013
LEDD * PD duration	-0.108	[-0.211; -0.005]	0.040

CI, confidence interval; ICB, impulsive-compulsive behavior; LEDD, levodopa equivalent daily dose; PD, Parkinson’s disease.