Table 1.

Sample demographics (means and standard deviations).

	Full sample (N = 205)	Mild severity (N = 114)	Moderate severity (N = 91)
Sex
Male	140	78	62
Female	65	36	29
Age (years)	65.72 (9.73)	63.30 (9.31)	68.85 (9.27)
UPDRS part 3 total (max. 132)	31.46 (14.16)	21.53 (7.11)	43.91 (10.45)
Disease duration (months)	70.28 (60.77)	61.52 (51.38)	81.76 (70.52)
LED	616.60 (458.66)	619.05 (426.01)	611.23 (496.35)

Note. LED = levodopa equivalent dose [33].