Table 2.

Correlation between tremor and dystonia severity scores and MRI measures

	Bain tremor severity score (ρ value, p value)	Bain writing score (ρ value, p value)	Bain Archimedes spiral score (ρ value, p value)	SARA score (ρ value, p value	GDS (ρ value, p value)
Thalamic volume, right	ρ = − 0.647 p = 0.031*	ρ = − 0.593 p = 0.055	ρ = − 0.507 p = 0.112	ρ = − 0.427 p = 0.190	ρ = − 0.524 p = 0.098
Thalamic volume, left	ρ = − 0.647 p = 0.031*	ρ = − 0.650 p = 0.030*	ρ = − 0.507 p = 0.112	ρ = − 0.309 p = 0.255	ρ = − 0.557 p = 0.075*
SCP area, right	ρ = − 0.338 p = 0.309	ρ = − 0.693 p = 0.018*	ρ = − 0.578 p = 0.062	ρ = − 0.154 p = 0.670	ρ = − 0.509 p = 0.110
SCP area, left	ρ = − 0.162 p = 0.635	ρ = − 0.497 p = 0.120	ρ = − 0.382 p = 0.246	ρ = 0.191 p = 0.574	ρ = − 0.697 p = 0.017*
Lesions
Whole brain (volume)	ρ = 0.206 p = 0.543	ρ = 0.363 p = 0.272	ρ = 0.406 p = 0.215	ρ = − 0.136 p = 0.689	ρ = 0.106 p = 0.757
Cerebellar/SCP, right (presence)	U = 13.5 p = 0.792	U = 6.0 p = 0.126	U = 7.5 p = 0.177	U = 12.0 p = 0.662	U = 11.0 p = 0.537
Cerebellar/SCP, left (presence)	U = 15.0 p = 1.00	U = 14.0 p = 0.931	U = 12.5 p = 0.662	U = 9.0 p = 0.329	U = 14.5 p = 0.931
Thalamus, right (presence)	U = 9.0 p = 0.630	U = 10.0 p = 0.776	U = 7.0 p = 0.376	U = 11.0 p = 0.921	U = 8.0 p = 0.497
Thalamus, left (presence)	U = 3.0 p = 0.218*	U = 2.0 p = 0.145	U = 0.5 p = 0.036*	U = 9.0 p = 1.00	U = 2.0 p = 0.145

SARA Scale for the Assessment and Rating of Ataxia, GDS Global Dystonia Scale (upper limb only), SCP superior cerebellar peduncle, ρ Spearman rho, U Mann–Whitney U test

Asterisk and bold text indicates significance p < 0.05