Table 3.

Linear regression analysis of factors influencing PD patients’ quality of life measured by the disease specific assessment tool PDQ-8 (n = 119).

	r	R 2	Beta	p
Age	0.135	0.0182	0.135	0.153
Disease duration	0.443	0.1963	0.443	<0.001 **
MDS-UPDRS II	0.788	0.6209	0.788	<0.001 **
BDI	0.700	0.4900	0.700	<0.001 **
TAS-26	0.472	0.2228	0.472	<0.001 **
TAS-26 F1	0.557	0.3103	0.557	<0.001 **
TAS-26 F2	0.302	0.0912	0.302	0.001 **
TAS-26 F3	0.135	0.0182	0.135	0.162

Linear regression analysis of factors contributing to patients’ health-related quality of life. p-value adjustment for multiple comparisons was 0.05/8. ** indicate significance level at p < 0.006 printed in bold. Abbreviations: BDI, Beck depression inventory; MDS-UPDRS, Movement Disorders Society unified Parkinson’s disease rating scale; PD, Parkinson’s disease; PDQ-8, Parkinson’s disease questionnaire 8; TAS-26, Toronto alexithymia scale 26 (F1: difficulties identifying feelings, F2: difficulties describing feelings, and F3: external oriented thinking).