TABLE 1.

Demographic and clinical characteristics of the participants.

Measures	PD 1	PD 2	PD 3
Age	79	70	59
Gender/sex	Male	Male	Male
Disease duration (months)	10	12	39
Hoehn and Yahr stage	2.0	2.0	2.5
UPDRS III	33	43	33
MMSE	29	29	29
MCI	No	Yes	No
LEDD	600	504	335

UPDRS III, Unified Parkinson Disease Rating Scale section III (motor part); MMSE, Mini Mental State Examination; MCI, mild cognitive impairment; LEDD, total levodopa equivalent daily dose calculated according to Tomlinson et al. (2010).