Table 1. Patient characteristics at baseline MRI.

	MCI/DLB (n = 10)	MCI/AD (n = 27)	MCI Stable (n = 20)	P-value
Female (%)	1(10.0%)	11(40.7%)	7(35.0%)	0.21
Age at scan, yr.	68.3 (66.4, 82.9)	79.9 (71.9, 84.2)	79.5 (75.9, 83.3)	0.16
Time interval, day	494 (366,867)	494 (438,953)	654(475,962)	0.19
Education, yr.	14 (12, 19)	13 (10, 17)	14 (12, 16)	0.33
Short Test of Mental Status	31 (30, 33)	30 (28, 32)	31 (29, 34)	0.25
CDR Sum of Boxes	2 (0.88, 2.5)	1 (0.5, 1.5)	0.5 (0.5, 1.5)	0.07
MMSE	26 (23, 27)	25 (24, 27)	26 (24, 28)	0.61
UPDRS	8 (6, 11)	0 (0, 3)	0 (0, 5)	<0.001

Median (interquartile range) was reported for continuous variables. P-values for group-comparison are from Chi-square and Kruskal-Wallis Tests. MCI/DLB= Mild cognitive impairment (MCI) patients who progressed to dementia with Lewy bodies (DLB); MCI/AD =MCI patients who progressed to Alzheimer's disease (AD) dementia; MCI stable = MCI patients who remained MCI during follow up; MMSE: Mini Mental State Examination; CDR: Clinical Dementia Rating Sum of Boxes; UPDRS: Unified Parkinson's Disease Rating Scale;