| Author | Number of patients | Mean age at surgery | Outcome at 5 years (compared with pre-DBS) | |||
| Motor score | Dyskinesia | Fluctuation | Medication | |||
| Krack, et al. [3] | 49 | 55 | 54% imp (med-off) | 71% imp | 58% imp | 63% dec |
| 48% det (med-on) | ||||||
| Schüpbach, et al. [4] | 37 | 55 | 50% imp (med-on) | 59% imp | 70% imp | 55% dec |
| no change (med-on) | ||||||
| Wider, et al. [5] | 37 | 65 | 30% imp (med-off) | 85% imp | 84% imp | 57% dec |
| 26% det (med-on) | ||||||
| Gervais-Bernard, et al. [6] | 23 | 55 | 55% imp (med-off) | NA | NA | 57% dec |
| 11% imp (med-on) | ||||||
| Moro, et al. [7] | 35 | 60 | 45% imp (med-off) | 83% imp | NA | 30% dec |
| 7% det (med-on) | ||||||
| Our series | 43 | 60 | NA (med-off) | 65% imp | 70% imp | 52% dec |
| 6% imp (med-on) | ||||||