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Table 1 Comparison of preoperative and postoperative clinical state [M (IQR)]

From: Relationship between electrode position of deep brain stimulation and motor symptoms of Parkinson’s disease

Time Medication off Medication on
UPDRS-III (0 ~ 108) BBS (0 ~ 56) UPDRS-III (0 ~ 108) BBS (0 ~ 56) LEDD (mg) PDQ-39 (0 ~ 124) FOG-Q
Preoperative 60.0 (23) 44 (11) 26.2 (23) 52 (7) 831 (453) 49 (38) 14 (12)
Postoperative
 1 month 35.0 (22) 48 (11) 15.0 (16) 53 (5) 9 (12)
 3 month 31.5 (12) 48 (10) 13.0 (13) 53 (5) 550 (357.5) 34 (25) 9 (12)
 6 month 31.0 (17) 48 (12) 12.0 (11) 54 (5) 475 (220.5) 23 (20) 9 (10)
Total P <0.001 0.084 <0.001 0.058 <0.001 <0.001 0.068
χ2 109.966 35.705 74.042 29.351 62.000 104.246 7.131
P1 <0.001 <0.001
P2 <0.001 <0.001 < 0.010 < 0.010
P3 <0.001 <0.001 < 0.010 < 0.010
  1. P1 value is the result of comparison between 1 month and preoperative, P2 value is the result of comparison between 3 months and preoperative, P3 value is the result of comparison between 6 months and preoperative; STN-DBS Subthalamic nucleus - deep brain stimulation, UPDRS-III Unified Parkinson’s Disease Rating ScaleIII, BBS Berg Balance Scale, LEDD Levodopa equivalent dose, PDQ-39 39-Item Parkinson’s Disease Questionnaire, FOG-Q Freeze of gait questionnaire; except LEDD unit is mg, all other index units are points