Table 1.
Basic demographics and cerebellar oscillations for controls and essential tremor cases
Control | Essential tremor | p value | |
---|---|---|---|
n | 20 | 40 | |
Age | 67.1 ± 9.3 | 66.8 ± 14.8 | 0.940a |
Female gender | 50% (10) | 40% (16) | 0.461b |
Family history of tremor* | 0% (0) | 55% (22) | < 0.001b |
Tremor onset age | NA | 44.4 ± 19.8 | — |
Tremor duration (y) | NA | 22.0 ± 15.4 | — |
Total tremor score | 0.1 ± 0.2 Median = 0.0 | 20.2 ± 9.0 Median = 18.5 | < 0.001c |
Cerebellar oscillation index | 6.8 ± 2.9 Median = 6.8 | 12.4 ± 6.6 Median = 10.3 | < 0.001c |
Independent t test
Chi-squared test
Mann–Whitney test
With liberal criteria
The median is reported if one or more of the variables are not normally distributed