TABLE 2.

Risk factors associated with conversion to Alzheimer’s disease after adjustment using the Cox proportional hazards regression model.

	All samples				LMCI				EMCI
RF	BC	SE	HR	P	BC	SE	HR	P	BC	SE	HR	P
FG_S2	−1.98	2.13	0.14	0.35	−0.09	3.11	1.09	0.98	−2.31	4.13	0.10	0.58
rACC_S3	−3.29	2.96	0.04	0.27	−0.27	4.03	0.76	0.95	−1.93	4.73	0.15	0.68
rACC_S5	−7.11	2.42	0.0008	0.009**	−8.21	3.83	0.0003	0.048*	−2.73	3.60	0.07	0.45

All of the risk factor estimates were the residuals from a linear regression model which regressed out age and gender. RF, risk factor; BC, beta coefficient; SE, standard error; HR, Hazard ratio; FG_S2, entropy in the fusiform gyrus at scale 2; rACC_S3, entropy in the rostral anterior cingulate cortex at scale 3; rACC_S5, entropy in the rostral anterior cingulate cortex at scale 5; EMCI, early mild cognitive impairment; LMCI, late mild cognitive impairment; *FDR adjusted p < 0.05, **FDR adjusted p < 0.01.