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Table 3 Comparison results of active contact coordinates in MNI space in different motor symptom improvement rate groups [M (IQR), mm]

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

Group Number of cases Left Right
X Y Z X Y Z
Improvement rates < 25% group 5 −12.1 (1.9) −14.0 (2.6) −9.4 (1.0) 12.1 (1.9) −14.7 (2.6) −9.3 (1.5)
Improvement rates 25–50% group 11 −11.1 (1.9) − 13.2 (2.6) −8.1 (1.3) 11.3 (1.9) − 13.5 (1.9) −8.4 (2.1)
Improvement rates > 50% group 41 −11.6 (1.2) − 13.4 (1.7) −7.9 (1.1) 12.1 (1.6) − 13.6 (2.2) −7.8 (1.2)
Kruskal-Wallis χ2   2.366 0.461 7.036 1.200 2.261 7.455
P   0.306 0.794 0.030 0.549 0.323 0.024