Table 1.

Initial clinical outcomes of bilateral STN DBS in 221 patients

	Pre-DBS	Post-DBS	p value
UPDRS III motor score	17.0 ± 12.9 (med-on)	12.2 ± 9.3 (med-on)	<0.001
	36.1 ± 15.4 (med-off)
Dyskinesia/fiuctuation score (UPDRS item 32–39)	6.0 ± 2.8	1.1 ± 1.7	<0.001
Medication (LEDD, mg)	594 ± 208	236 ± 150	<0.001

Values are expressed as mean ± standard deviation. The Wilcoxon signed-rank test was used for comparison between preand post-DBS values.

DBS: deep brain stimulation, LEDD: levodopa-equivalent daily dosage, STN: subthalamic nucleus, UPDRS: Unified Parkinson’s Disease Rating Scale Part III.