Table 1.
Statistics of tremor metrics
| Drawing A: Big Spiral | Drawing B: Small Spiral | Drawing C: Lines | ||||
|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | Pre | Post | |
| Dominant Hand |
12.5 | 4.1 | 12.3 | 3.4 | 12.0 | 4.9 |
| 10.0–18.3 | 3.7–5.1 | 7.4–17.7 | 2.5–4.0 | 10.9–15.2 | 4.5–5.6 | |
| p = 0.016 * | p = 0.008 * | p = 0.008 * | ||||
| Non-Dominant Hand |
17.5 | 19.7 | 18.9 | 16.4 | 11.8 | 12.6 |
| 9.3–61.1 | 15.6–44.1 | 6.4–86.5 | 9.4–46.3 | 8.3–40.4 | 9.4–33.5 | |
| p = 0.945 | p = 0.547 | p = 0.945 | ||||
Descriptive statistics and test results on tremor metrics (mm/s2) for each drawing type and hand, at pre- and post-operative time points. The first row in each Drawing x Hand cell contains the median tremor metrics; the second row contains the first–third quartile range; and the third row is the result of the pre- vs. post-operation tremor metric comparison, which is shown in bold numbers and marked with an asterisk if significant (α = 0.017, p-values uncorrected)