Table 2: Predictors of Health-Related Quality of Life per Parkinson’s Disease Questionnaire-Short-Form (PDQ-8) based on Linear Regression Models.
Motor Variables |
p-value |
Adjusted R2 |
UPDRS + Clinical/Demographics |
0.068 |
0.241 |
H & Y + Clinical/Demographics |
0.174 |
0.139 |
UPDRS |
0.001* |
0.322 |
H & Y |
0.014* |
0.189 |
Speech Variables |
p-value |
Adjusted R2 |
SIT + Clinical/Demographics |
0.480 |
-0.011 |
Monologue + Clinical/Demographics |
0.390 |
0.025 |
SIT |
0.961 |
-0.040 |
Monologue |
0.306 |
0.003 |
Cognitive Variable |
p-value |
Adjusted R2 |
MoCA + Clinical/Demographics |
0.043* |
0.284 |
MoCA |
0.111 |
0.062 |
*p< 0.05 Note: UPDRS: Unified Parkinson's Disease Rating Scale; H & Y: Hoehn and Yahr scale; SIT: Speech Intelligibility Test, MoCA: Montreal Cognitive Assessment.