Table 3: Exploratory comparison of secondary outcome CATSYS measures.

Control ( 𝑁 = 3 7 )Non-FXTAS ( 𝑁 = 9 0 )FXTAS ( 𝑁 = 2 3 )
CATSYS groupCATSYS performance
task
MeanSDMeanSDMeanSDFXTAS versus controlNon-FXTAS versus controlFXTAS versus non-FXTAS

Manual coordination, Maximum frequency (Hz)Hand
 Dominant7.070.826.820.986.421.14*nsans
 Nondominant6.900.936.601.016.201.36*nsns
Finger tapping
 Dominant7.461.107.251.386.501.73**ns
 Nondominant7.191.367.311.276.321.75***ns

Reaction
Time (sec)
Hand
 Dominant0.240.050.240.050.270.05*nsns
 Nondominant0.230.050.240.050.260.05**ns

Writing
Tremor,
tremor
Intensity (m/sec2)
Hand
 Dominant0.530.470.741.030.931.19nsnsns
 Nondominant0.590.540.700.941.001.15nsns ns

Analysis based on logarithm transformed data and adjusted for age.
a Not significant ( 𝑃 > . 1 0 ).
** 𝑃 < . 0 1 .
* 𝑃 < . 0 5 .