Figure 2From: Subthalamic nucleus deep brain stimulation in elderly patients – analysis of outcome and complicationsHoehn and Yahr scores in all patients as well as in groups I and II preoperatively (with/without medication) and at follow-up after 6, 12, and 24 months; significant differences between pre- and postoperative scores in all groups (**, #, § p < 0.05).Back to article page