Table 1. Motor scores (mean ± SD) before (preoperative condition, baseline) and after (postoperative condition, M+3) STN DBS in PD patients.

	Off-dopa score Preoperative (Baseline)	Off-dopa score Postoperative (M+3)	On-dopa score Preoperative (Baseline)	On-dopa score Postoperative (M+3)
	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
UPDRS III	31.4±12.2	14.1±7.4*	8.8±4.5	6.1±4.0
S&E (%)	62.5±27.0	70.0±20.0	87.5±11.4	88.3±9.4
H&Y	2.3±0.8	1.9±0.9	1.2±0.6	1.2±1.0
LED	-	-	1081.1±605.3	625.8±600.9*

Differential effects between the two conditions are reported (Wilcoxon test for paired comparisons) *p<0.05. UPDRS: United Parkinson's Disease Rating Scale; SD: standard deviation; S&E: Schwab & England; H&Y: Hoehn & Yahr; LED: levodopa-equivalent dose.