Table 1.

Clinical characteristics

Patient	Age	Gender	Duration of disease (years)	Duration of DBS (years)	Hoehn and Yahr	LED (mg)
PD1	51	M	11	2	2.5	400
PD2	64	F	16	1	2.5	1210
PD3	52	M	15	3	2	520
PD4	58	M	11	4	2	350
PD5	60	M	15	4	2	150
PD6	55	M	10	1	2	300
PD7	59	M	17	2	3	630
PD8	77	M	7	2	1.5	300
PD9	71	F	26	1	4	200
PD10	53	M	13	4	2	700
PD11	62	F	18	2	4	300
PD12	52	M	16	4	2	300
PD13	52	M	11	1	3	870
PD14	58	M	20	6	4	530
PD15	71	F	22	4	4	750
PD16	51	M	14	5	2	500
PD17	40	M	7	2	2	450
PD18	50	F	21	3	4	680
PD19	75	F	22	6	2	150
PD20	60	M	22	2	4	910

M = male; F = female; LED = l-DOPA equivalent dosage in mg.