Table 2.

Percentage difference in intercept between SPGR and MPRAGE in the cross-sectional sample

	Unharmonized		Harmonized
ROI	% difference in intercept	p-value	% difference in intercept	p-value
TOTALBRAIN	−8.8	<0.0001	−3.83	0.014
GM	−9.49	<0.0001	−5.62	<0.0001
WM	−7.88	<0.0001	−1.48	0.38
FRONTAL	−8.28	<0.0001	−3.44	0.04
LIMBIC	−6.87	<0.0001	−0.36	0.85
OCCIPITAL	−11.44	<0.0001	−4.71	0.012
PARIETAL	−11.51	<0.0001	−5.63	0.0006
TEMPORAL	−8.27	<0.0001	−4.13	0.013
DEEP WM GM	−0.6	0.69	0.42	0.78
CEREBELLUM	−9.64	<0.0001	−4.58	0.0065
VENTRICLE	−1.35	0.95	−4.01	0.85
BASAL GANGLIA	−0.61	0.76	0.08	0.97
CORPUS CALLOSUM	−4.41	0.076	−4.05	0.1
FRONTAL GM	−8.16	<0.0001	−4.86	0.0049
LIMBIC GM	−6.87	<0.0001	−0.36	0.85
OCCIPITAL GM	−11.54	<0.0001	−6.51	0.0006
PARIETAL GM	−12.02	<0.0001	−7.29	<0.0001
TEMPORAL GM	−10.08	<0.0001	−6.92	<0.0001
DEEP GM	−3.93	0.011	−3.01	0.05
FRONTAL WM	−8.4	<0.0001	−1.95	0.29
OCCIPITAL WM	−11.27	<0.0001	−1.46	0.5
PARIETAL WM	−11	<0.0001	−3.91	0.029
TEMPORAL WM	−6.44	0.0003	−1.21	0.51
DEEP WM	6.99	0.0003	8.49	<0.0001