Table 1.

Demographic and clinical variables in PD and NC participants. Means (SD) are reported unless otherwise indicated.

	NC	RPD	LPD
N	22	11	11
Age	61.3 (6.9)	63.2 (6.0)	61.3 (6.2)
Years of Education	16.0 (1.9)	15.5 (2.2)	15.9 (3.0)
M : F	11 : 11	6 : 5	5 : 6
MMSE (total)	29.8 (0.5)	29.1 (0.9)	29.5 (0.8)
BDI-II (total)	4.6 (4.1)*	7.3 (3.5)	7.0 (4.0)
Disease Duration (Years)	n/a	8.4 (3.7)	9.0 (4.0)
Hoehn and Yahr stage∧	n/a	2 (2-3)	2 (2-3)
LED	n/a	475.2 (294.4)	497.5 (329.7)

BDI-II: Beck Depression Inventory-II.

* Significantly different from PD groups (Ps < 0.04).

^∧Median (range).

n/a: not applicable.

LED: levodopa equivalent dosage.