Table 1.

Multivariable Regression Models

	Model 1: Change in UPDRS Motor Exam (F = 3.44, p = 0.0009)	Model 2: Change in UPDRS ADL assessment (F = 2.26, p =0.024)
Covariate predictors	t-test and p-value
Baseline UPDRS Motor exam	t = −1.22, p = 0.223	NA
Baseline UPDRS ADL assessment	NA	t = −0.28, p = 0.779
Disease Duration	t = −0.54, p = 0.588	t = 0.45, p = 0.652
Baseline Orthostatic blood Pressure change	t = 2.40, p = 0.017	t = 0.83, p = 0.409
Age	t = −1.38, p = 0.167	t = −1.73, p = 0.085
Change in MMSE score	t = −1.75, p = 0.082	t = −2.33, p = 0.021
Levodopa equivalent dose	t = −1.89, p = 0.061	t = −0.78, p = 0.435
Male Gender	t = 1.94, p = 0.053	t = 0.34, p = 0.733
Levodopa treatment arm	t = −2.25, p =0.025	t = −2.65, p = 0.008