Table 1.

Characteristics of Parkinson’s disease (PD) patients and healthy elderly (HE) subjects, presented as median ± inter-quartile range.

	PD Patients	HE Subjects
Patients (n, gender)	65 (43 m, 22 f)	10 (5 m; 5 f)
Age (years)	65 ± 11	61 ± 7
Years with levodopa	13 ± 7	NA
Hoehn and Yahr stage at present	2.5 ± 1 *	NA
Total UPDRS	49 ± 20.5 *	NA

* Clinical assessments performed in the afternoon at the start of each test period. Abbreviation: UPDRS, Unified PD Rating Scale; NA, not applicable.