Table 1.

Patients’ characteristics in medical and surgical groups at baseline

	Medical group	Surgical group	P value
Patients, n	10	9	NS
Male/female	8/2	7/2	NS
Age (years)	60.9±9.2	57±11.4	NS
Disease duration (years)	10.3±5.6	6.4±3	NS
LEDD at baseline (mg)	1043±516	1376±883	NS
UPDRS-III at baseline off-medication	42.4±14.5*	33.2±11.4**	NS
UPDRS-III at baseline on-medication	20.6±11.9*	19.4±12.5**	NS

Values represent mean±SD.

*Within-group, P=0.001.

** Within-group, P=0.01.

LEDD, levodopa-equivalent daily doses; NS, not  significant; UPDRS-III, Unified Parkinson’s Disease Rating Scale.