Table 3.

Group effects of diagnosis on diffusivity

Dependent variable	Coefficients value	SE	p Value	Effect size
AD vs CN
Left PH	0.22	0.09	0.03	0.78
Right PH	0.39	0.12	0.002	1.25
Left PC	0.24	0.09	0.01	0.95
Right PC	0.24	0.09	0.01	1.04
sCC	0.18	0.17	0.31	0.44
gCC	0.11	0.16	0.5	0.45
MCI vs CN
Left PH	0.1	0.09	0.28	0.4
Right PH	0.17	0.09	0.06	0.73
Left PC	0.16	0.08	0.04	0.82
Right PC	−0.04	0.07	0.59	−0.08
sCC	−0.07	0.12	0.53	−0.15
gCC	−0.21	0.13	0.13	−0.35
AD vs MCI
Left PH	0.1	0.1	0.34	0.41
Right PH	0.21	0.12	0.1	0.58
Left PC	0.06	0.1	0.55	0.21
Right PC	0.23	0.09	0.01	1.06
sCC	0.21	0.17	0.23	0.55
gCC	0.27	0.16	0.1	0.77

AD = Alzheimer disease; CN = cognitive normal; PH = parahippocampus; PC = posterior cingulate; sCC = splenium and gCC = genu of the corpus callosum; MCI = mild cognitive impairment.