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Table 1 Best Fit Multivariable Regression Models with UPDRS Summary Scores as Candidate Variables (Model 1) and UPDRS Component Sub-Scores as Candidate Variables (Model 2)

From: Health-Related Quality of Life in Parkinson disease: Correlation between Health Utilities Index III and Unified Parkinson's Disease Rating Scale (UPDRS) in U.S. male veterans

 

Multivariable Model 1

r2 = 0.69, AIC = -21.4

Multivariable Model 2

R2 = 0.76, AIC = -33.1

Predictor

Coefficient

95% CI

P -value

Coefficient

95% CI

P -value

Intercept

0.25

---

---

0.17

---

---

UPDRS II

-.015

-0.024 to -0.005

0.003

---

---

---

Axial Subscore

---

---

---

-0.030

-0.043 to -0.018

<0.001

Schwab and England Score

0.006

0.002 to 0.010

0.003

0.005

0.003 to 0.008

<0.001

Pharmacotherapy for Dementia

-0.21

-0.37 to -0.04

0.02

---

---

---

Duration of disease

---

---

---

0.016

0.004 to 0.027

0.007