Impact of Anxiety on Quality of Life in Parkinson's Disease

Table 3

Spearman correlation matrix for variables previously demonstrated to affect health-related quality of life in PD.

	STAI-T	BDI-II	GDS	DRS	H/Y	AGE	EDU	DUR	PDQ-39
BAI	.68**	.54**	.43**	−.33 *	−.31	0.05	−.43 **	.19	.54**
STAI-T		.78**	.79**	.23	.13	.05	−.27	−.01	.65**
BDI-II			.79**	−.20	.09	.17	−.17	−.02	.54**
GDS				−.02	−.08	.09	−.22	.08	.43**
DRS					−.37 *	−.28	.17	−.24	.33*
H/Y						.16	−.005	.21	−.10
AGE							−.09	.33*	−.04
EDU								−.09	−.11
DUR									.17

* 𝑃<.05; **𝑃<.01.
BAI: Beck Anxiety Inventory; STAI-T: Spielberger Trait Inventory; BDI-II: Beck Depression Inventory II; GDS: Geriatric Depression Scale; general cognitive status: DRS: Dementia Rating Scale; H/Y: Hoehn and Yahr index of motor symptom stage; AGE: age at time of testing; EDU: years of education; DUR: years of disease duration.