Number of patients displaying a disorder using the Ardouin Scale (score ≥2) before surgery (baseline) and at endpoint visit (3–10 years after surgery)
| Disorders | Baseline (%) | Endpoint (%) | P value |
| Hypodopaminergic behaviours | |||
| Depressed mood | 4 (5.8) | 9 (13) | 0.167 |
| Anxiety | 14 (20.3) | 7 (10.1) | 0.096 |
| Irritability, aggressiveness | 7 (10.1) | 2 (2.9) | 0.166 |
| Hyperemotivity | 21 (30.4) | 13 (18.8) | 0.285 |
| Apathy | 2 (2.9) | 17 (24.6) | <0.01 |
| Neuropsychiatric non-motor fluctuations | |||
| ON | 26 (37.7) | 1 (1.4) | <0.01 |
| OFF | 27 (39.1) | 7 (10.1) | <0.01 |
| Hyperdopaminergic behaviours | |||
| Hypomanic mood | 6 (8.7) | 0 (0) | <0.01 |
| Psychotic symptoms | 0 (0) | 4 (5.8) | 0.066 |
| Nocturnal hyperactivity | 24 (34.8) | 8 (11.6) | <0.01 |
| Diurnal somnolence | 10 (14.5) | 7 (10.1) | 0.177 |
| Eating behaviour | 20 (29) | 12 (17.4) | 0.174 |
| Creativity | 12 (17.4) | 3 (2.9) | <0.01 |
| Hobbyism | 19 (17.5) | 2 (2.9) | <0.01 |
| Punding | 2 (2.9) | 1 (1.4) | 0.463 |
| Risk-taking behaviour | 5 (7.2) | 0 (0) | <0.05 |
| Compulsive shopping | 4 (5.8) | 2 (2.9) | <0.05 |
| Pathological gambling | 4 (5.8) | 0 (0) | <0.05 |
| Hypersexuality | 2 (2.9) | 3 (4.3) | 0.444 |
| Dopaminergic addiction | 10 (14.5) | 0 (0) | <0.01 |
| Excess in motivation | 25 (36.2) | 2 (2.9) | <0.01 |