Table 4.
Multiple regression analysis of factors influencing quality of life of PD patients measured by the disease specific assessment tool PDQ-8 (n = 104).
| B (95% CI) | R 2 | Beta | t | p | |
|---|---|---|---|---|---|
| (Constant) | 6.690 (3.989; 9.392) | 4.914 | <0.001 * | ||
| Disease duration | 0.075 (−0.034; 0.184) | 0.288 | 0.083 | 1.360 | 0.177 |
| MDS-UPDRS II | 0.314 (0.234; 0.395) | 0.729 | 0.531 | 7.749 | <0.001 * |
| BDI | 0.233 (0.110; 0.356) | 0.531 | 0.282 | 3.756 | <0.001 * |
| TAS-26 F1 | 1.631 (0.417; 2.845) | 0.445 | 0.202 | 2.666 | 0.009 * |
| TAS-26 F2 | −0.405 (−1.365; 0.554) | −226 | −0.051 | −0.839 | 0.404 |
* Indicates significant correlations at p < 0.05 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).