Table 1.

Demographic and clinical patient characteristics. UPDRS: Unified Parkinson's Disease Rating Scale, ON/OFF values of preoperative l-dopa challenge test; LED: levodopa equivalent dose at the time of recording.

ID	Age [y]	Gender	Parkinson type	Disease duration [y]	Hoehn–Yahr Scale	UPDRS III ON/OFF	LED [mg/d]
1	61	F	Rigid akinetic	9	2	12/24	850
2	63	M	Tremor dominant	12	2	16/55	1000
3	48	M	Young onset	10	2.5	11/53	500
4	47	M	Young onset	12	2	18/46	1000
5	73	M	Tremor dominant	10	2	18/37	1000
6	53	M	Rigid akinetic	14	2.5	28/52	2300