Table 2

Hemibody subgroup proportions and average motor improvement

Current study (N=106)Bot et al19 (N=33)P value
Inclusion period2016–20192007–2011
DBS electrodes/hemibodies, N21265
 Non-responding, % (N)17% (37)26% (17)0.107
 Responding, % (N)51% (108)46% (30)0.481
 Optimally responding, % (N)32% (67)28% (18)0.543
Hemibody MDS-UPDRS ME improvement, mean±SEM*53%±2.0%48%±5.0%0.416
 Q1, mean±SEM13%±2.7%−8%±9.9%0.044†
 Q2, mean±SEM47%±0.8%48%±2.4%0.886
 Q3, mean±SEM65%±0.8%67%±1.0%0.179
 Q4, mean±SEM85%±1.0%86%±2.1%0.781
  • *Bootstrap for independent t-test based on 1000 samples.

  • † Statistically significant.

  • DBS, deep brain stimulation; MDS-UPDRS ME, Movement Disorder Society–Unified Parkinson’s Disease Rating Scale Motor Examination.