Table 2.

Group effects of diagnosis on fractional anisotropy

Dependent variable	Coefficients value	SE	p Value	Effect size
AD vs CN
Left PH	−0.27	0.08	0.002	−1.14
Right PH	−0.18	0.09	0.04	−0.72
Left PC	−0.42	0.08	<0.0001	−1.76
Right PC	−0.28	0.07	0.003	−1.36
sCC	−0.37	0.11	0.003	−1.22
gCC	−0.11	0.12	0.39	−0.59
MCI vs CN
Left PH	−0.24	0.09	0.01	−0.96
Right PH	−0.18	0.07	0.02	−0.76
Left PC	−0.23	0.07	0.003	−1.07
Right PC	−0.04	0.07	0.59	−0.14
sCC	−0.12	0.07	0.11	−0.5
gCC	−0.07	0.13	0.6	−0.26
AD vs MCI
Left PH	−0.03	0.09	0.69	−0.1
Right PH	0.03	0.09	0.79	−0.06
Left PC	−0.15	0.09	0.12	−0.6
Right PC	−0.24	0.08	0.004	−1.09
sCC	−0.29	0.11	0.01	−0.89
gCC	−0.03	0.14	0.81	−0.29

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