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Table 1 Statistics of tremor metrics

From: A computerized tablet system for evaluating treatment of essential tremor by magnetic resonance guided focused ultrasound

 

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

  1. 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)