Table 4.

Predictors of group (PD vs. controls) and neuropsychological performance for PD patients in the off medication state based on stepwise multiple regression analyses

Dependent variable	β	β	SE (β)	β	t	p
Group	Age	−0.035	0.009	−0.439	−4.07	0.0001
	WAIS-IV LNS	−0.050	0.016	−0.329	−3.04	0.003
	RBANS List Recall	−0.073	0.024	−0.329	−2.99	0.004
	RBANS Figure Recall	−0.033	0.015	−0.221	−2.19	0.031
PD patients in the off medication state
RBANS List Recalloff	Age	−0.072	0.017	−0.544	−4.21	0.0001
	PDQ-39off	−0.022	0.008	−0.348	−2.71	0.010
RBANS Figure Recalloff	Age	−0.087	0.021	−0.587	−4.12	0.0001
	Disease duration	0.156	0.062	0.353	2.50	0.017
WAIS-IV LNSoff	Age	−0.060	0.016	−0.517	−3.71	0.001
	PDQ-39off	−0.017	0.008	−0.293	−2.12	0.041
D-KEFS Trails 5 Timeoff	Age	0.088	0.023	−0.510	−3.84	0.0001
	BAIoff	0.413	0.173	−0.314	−2.38	0.023
D-KEFS Tower Total Timeoff	PDQ-39off	0.032	0.014	0.342	2.25	0.031