Table 1.
Data from three studies of essential tremor
| Clinical sample in New York |
Future Brain Donors |
Population- based study in New York |
|
|---|---|---|---|
| Number of ET cases | 328 | 94 | 106 |
| Age (years) | 67.8 ± 15.0 | 74.1 ± 10.1 | 69.8 ± 18.4 |
| Women | 174 (53.0%) | 57 (60.6%) | 63 (59.4%) |
| Education (years) | 15.0 ± 3.8 | NA | NA |
| Education | NA | NA | |
| High school graduate | 92 (97.9%) | ||
| Bachelor’s degree | 49 (52.1%) | ||
| Total tremor score | 19.8 ± 7.0 | 19.7 ± 6.6 | 16.4 ± 6.7 |
| Tremor duration (years) | 23.8 ± 18.9 | 40.0 ± 20.3 | 15.4 ± 18.8 |
| Family history of ET or tremor** |
213 (64.9%) | 76 (88.3%)* | 34 (32.1%) |
| Ever prescribed medication for tremor |
261/328 (79.6%) |
82/94 (87.2%) |
10/106 (9.4%) |
| Currently taking medication for tremor |
179/328 (54.6%) |
62/94 (66.0%) |
7/106 (6.6%) |
| Proportion of those ever prescribed medication who are currently taking medication for tremor |
179/261 (68.6%) |
62/82 (75.7%) |
7/10 (70.0%) |
| Proportion of those ever prescribed medication who are no longer taking medication for tremor |
82/261 (31.4%) |
20/82 (24.3%) |
3/10 (30.0%) |
*
86 of 94 cases knew their family history.
NA = data not available.
Values are mean ± SD or proportion (percentage).
**
≥1 first-degree relative with ET or tremor.