Table 2.

Bonferroni Multiple Comparisons among Different Groups

Region	Group	Group	Mean Difference (T1ρ)	P-Value	95% CI
					LB	UB
GM	Control versus	MCI	−3.41	.120	−7.39	.58
	Control versus	AD	−4.45	.013*	−8.14	−75
	MCI versus	AD	−1.04	.948	−4.86	2.79
WM	Control versus	MCI	−3.53	.266	−8.54	1.47
	Control versus	AD	−7.74	.000*	−12.38	−3.09
	MCI versus	AD	−4.20	.107	−9.00	.60

GM = gray matter; WM = white matter; MCI = mild cognitive impairment; AD = Alzheimer’s disease; CI = confidence interval.

^*P indicates value at significant level.