Table 4.

Regression analysis using CGG repeat size and FXTAS severity scale

Region	Size	x	y	z	zmax
CGG repeat size
Supplementary motor area	283	5	−6	59	4.26
		−3	−5	55	4.20
Mammillary body/anterior ventral hypothalamus	282	3	−5	−11	4.23
Right orbitofrontal cortex	165	16	69	−9	4.33
Left dorsomedial prefrontal cortex	144	−4	28	48	4.25
		−4	49	30	4.11
		−4	40	41	4.09
Right cerebellar hemisphere lobule IX	142	−13	−42	−54	4.35
Right anterior cingulate/paracingulate cortex	109	5	50	25	4.28
FXTAS severity scale
Right cerebellar vermis lobule VI/VII	639	4	−78	−23	4.66
Right orbitofrontal cortex	398	16	69	−11	4.63