Table 2.
Demographic and clinical characteristics of the essential tremor patients and the healthy control group
| Healthy controls (N = 17) | Essential tremor patients (N = 13) | P value | |
|---|---|---|---|
| Sex (men) | 10 (58.8%) | 6 (46.2%) | χ(1) = 0.475, P = 0.491 |
| Age in years | 64.1 ± 11.9 (39 to 80) | 67.8 ± 7.3 (51 to 80) | t(28) = −1.008, P = 0.322 |
| Years of formal education | 9.1 ± 3.4 (2 to 13) | 7.1 ± 3.7 (2 to 12) | t(26) = 1.491, P = 0.148 |
| Tremor severity a | – | 35.1 ± 13.9 (18 to 56) | |
| Tremor duration in years | – | 27.6 ± 18.7 (6 to 65) |
Values are expressed as mean ± standard deviation (range).
Student's t test was used for comparison of continuous data and the chi‐square test for sex proportion.
a
Fahn–Tolosa–Marín Tremor Rating Scale.