Demographic and clinical characteristics of 27 patients with essential tremor undergoing chronic thalamic deep brain stimulation
| *Items 19 and 20 (writing and drawing) of the MMSE were not feasible due to severe tremor in 13 (48%) patients. | ||
| Age (mean (SD; range)) | 66.1 | (11.0; 25–79) |
| Sex (female/male) | 9/18 | |
| Duration of disease (y) (mean (SD; range)) | 21.0 | (18.6; 2–56) |
| Unilateral tremor (n (%)) | 6 | (22.2) |
| Bilateral tremor (n (%)) | 21 | (77.8) |
| Surgery for dominant hand (n (%)) | 23 | (85) |
| Living alone (n (%)) | 13 | (48) |
| Living with spouse (n (%)) | 14 | (52) |
| Professionally active no (%) | 4 | (15) |
| MMSE total score preoperative (mean (SD; range))* | 26.6 | (2.5; 21–30) |