TABLE 5.

Progression to dementia.

	Full sample N = 159	Stable MCI		Reverters		False reverters N = 10
Months until DX		Unadjusted N = 141	Adjusted N = 151	Unadjusted N = 18	Adjusted N = 8
Mean	37.48	36.17	36.32	47.77	59.44	38.44
Median	25.28	24.98	24.98	37.28	60.28	30.03
SD	21.90	20.66	20.66	28.68	33.34	21.70

Presents the time in months until first dementia diagnosis (DX) among those who converted to dementia. Of the 329 participants 159 have progressed to dementia (“Full Sample”). Participants were classified as “Stable MCI” if they retained their mild cognitive impairment (MCI) classification at follow-up; participants were classified as “Reverters” if they were classified as cognitively normal at follow-up. Classifications were made using practice effect-unadjusted (“Unadjusted”) and practice effect-adjusted (“Adjusted”) data. Those who were classified as MCI by the practice effect-adjusted data but not the unadjusted data are referred to as “False reverters”. Values are bolded to emphasize that the False reverters appear to be similar to the Stable MCI group in time to first dementia diagnosis.