Comparison of Outcomes Over Time for All Unilateral DBS Cases (Including both STN and GPi).

LED- levodopa equivalent dose; HAM-A- Hamilton Anxiety Inventory; HAM-D- Hamilton Depression Inventory; BDI- Beck Depression Inventory; AS- Apathy Scale; YBOCS- Yale Brown Obsessive Compulsive Scale; YMRS- Young Mania Rating Scale; UPDRS- Unified Parkinson's Disease Rating Scale Motor Section (III); Time intervals correspond to time from the DBS operation. Significant changes are highlighted in bold (p<0.05; and for p<0.01). Comparison of Outcomes Over Time for All Unilateral DBS Cases (Including both STN and GPi).