Table 2.
Comparison of 227 subjects with ET and without ET
| ET group | Non-ET group | p value | |
|---|---|---|---|
| Number, n | 27 | 200 | |
| Age in years, mean ± SD | 66.5 ± 11.7 | 62.2 ± 12.3 | 0.09 |
| Female gender, n (%) | 10 (37.0) | 93 (46.5) | 0.35 |
| Marital Status, n (%) | |||
| Married or remarried | 13 (48.1) | 138 (69.0) | 0.14* |
| Widowed | 6 (22.2) | 22 (11.0) | |
| Never married | 5 (18.5) | 22 (11.0) | |
| Divorced or separate | 2 (7.4) | 14 (7.0) | |
| Other | 1 (3.7) | 4 (2.0) | |
| Education (%) | |||
| Less than high school | 8 (29.6) | 54 (27.0) | 0.34* |
| High school graduate | 2 (7.4) | 7 (3.5) | |
| Some college but not a college graduate | 8 (29.6) | 63 (31.5) | |
| College graduate | 5 (18.5) | 58 (29.0) | |
| Masters or doctorate degree | 2 (7.4) | 14 (7.0) | |
| Missing data | 2 (7.4) | 4 (2.0) | |
| Place (i.e., Island) of residence, n (%) | |||
| Suðurstreymoy | 10 (37.0) | 106 (53.0) | 0.35* |
| Eysturoy | 4 (14.8) | 28 (14.0) | |
| Norðoyggjar | 5 (18.5) | 27 (13.5) | |
| Suðuroy | 5 (18.5) | 15 (7.5) | |
| Vágoy | 2 (7.4) | 10 (5.0) | |
| Norðstreymoy | 1 (3.7) | 7 (3.5) | |
| Sandoy | 0 (0.0) | 7 (3.5) | |
| Current cigarette smoker, n (%) | 9 (33.3) | 40 (20.0) | 0.11 |
| BMI, mean ± SD | 28.0 ± 3.8 | 28.4 ± 4.6 | 0.66 |
| Yes to question “do you drink alcohol”, n (%) | 18 (66.7) | 134 (67.0) | 0.97 |
| Yes to question “do you have a tremor”, n (%) | 15 (55.6) | 31 (15.5) | <0.0001 |
| Yes to question “does anyone in your family have shaking/tremor”, n (%) | 13 (48.1) | 66 (33.0) | 0.23* |
| Yes to question “do you often have shaking or tremor that you cańt control”, n (%) | 8 (29.6) | 25 (12.5) | 0.08* |
| Yes to question “do other people often tell you that you have a tremor”, n (%) | 9 (33.3) | 8 (4.0) | <0.0001* |
| Yes to question “has a doctor diagnosed you as having familial tremor or benign essential tremor”, n (%) | 1 (3.7) | 4 (2.0) | 0.19* |
| Yes to question “do you often have shaking or tremor in your hands or arms that you cańt control”, n (%) | 0.013* | ||
| Yes, right arm | 1 (3.7) | 8 (4.0) | |
| Yes, left arm | 0 (0.0) | 2 (1.0) | |
| Yes, both arms | 7 (25.9) | 12 (6.0) | |
| Yes to question “does your head often shake uncontrollably”, n (%) | 1 (3.7) | 6 (3.0) | 0.15* |
| Yes to question “does your voice almost always tremble when you talk”, n (%) | 0 (0.0) | 1 (0.5) | 1.0* |
| Yes to question “does your hand usually tremble when you hold a pen or write your name”, n (%) | 11 (40.7) | 14 (7.0) | <0.0001* |
P <0.05; T-test for continuous variables and chi square or Fischer’s exact test for categorical variables
SD=standard deviation
*
Fisheŕs exact test