Table 5.

Percentage difference in intercept between SPGR and MPRAGE for the longitudinal sample

	Unharmonized		Harmonized
ROI	% difference in intercept	p-value	% difference in intercept	p-value
TOTALBRAIN	−8.18	<.0001	−2.29	<.0001
GM	−2.99	<.0001	−2.02	<.0001
WM	−14.23	<.0001	−3.71	<.0001
FRONTAL	−8.34	<.0001	−2.69	<.0001
LIMBIC	−1.43	0.0049	3.63	<.0001
OCCIPITAL	−15.8	<.0001	−8.63	<.0001
PARIETAL	−10.9	<.0001	−4.99	<.0001
TEMPORAL	−7.17	<.0001	−1.81	<.0001
DEEP WM GM	4.2	<.0001	5.26	<.0001
CEREBELLUM	−6.65	<.0001	−1.67	<.0001
VENTRICLE	5.34	0.0019	5.71	0.0008
BASAL GANGLIA	4.17	<.0001	6.63	<.0001
CORPUS CALLOSUM	3.81	<.0001	3.34	<.0001
DEEP GM	1.62	<.0001	3.2	<.0001
FRONTAL GM	0.85	0.0587	−0.21	0.62
LIMBIC GM	−1.43	0.0049	3.63	<.0001
OCCIPITAL GM	−9.07	<.0001	−8.53	<.0001
PARIETAL GM	−3.71	<.0001	−3.45	<.0001
TEMPORAL GM	−4.13	<.0001	−2.86	<.0001
FRONTAL WM	−16.2	<.0001	−5.08	<.0001
OCCIPITAL WM	−25.29	<.0001	−8.81	<.0001
PARIETAL WM	−17.13	<.0001	−6.45	<.0001
TEMPORAL WM	−9.87	<.0001	−0.81	0.0035
DEEP WM	9.92	<.0001	7.14	<.0001