Table 1.

Demographic and clinical data.

	All patients (n = 10)	Early-stage group (n = 6)	Late-stage group (n = 4)
Gender, M/F	7/3	3/1	4/2
Age at onset, mean years (SD)	68 ± 9.9	71.7 ± 9.0	60.7 ± 8.3
Disease duration, mean years (SD)	8 ± 5.2	7.0 ± 6.1	10.0 ± 3.0
% Tremor as first symptom	60%	50%	66.7%
MDS-UPDRS Part II, mean (SD)	12.4 ± 8.1	8.0 ± 2.3	21.43 ± 8.5
MDS-UPDRS Total score, mean (SD)	62.4 ± 23.6	61.0 ± 26.8	90.7 ± 18.3
HY, mean (SD)	2.2 ± 0.4	2.0 ± 0.0	2.5 ± 0.6