Table 2.

Cognitive test data for the aMCI converter subjects at each serial MRI time-point

	aMCI (3 years before conversion)	aMCI (1 year before conversion)	AD (Time of conversion)	Slope trend Median (95% CI)
Median (range) MMSE score	27 (24, 30)	25 (22, 29)	24 (14, 30)	−0.9 (−1.4, −0.7)
Median (range) CDR sum of boxes	1.0 (0.0, 6.0)	2.0 (0.5, 4.5)	3.5 (1.5, 12)	0.7 (0.6, 1.1)
Median (range) DRS score	132 (116, 141)	125 (106, 136)	120 (99, 135)	−3.0 (−4.3, −2.1)

MMSE = Mini-Mental Status Examination; CDR = Clinical Dementia Rating; DRS = Dementia Rating Scale; CI = confidence interval