TABLE 6.

Floodlight and Spotlight Analyses for Diagnostic Progression

	Estimate	SE	df	t	P
CN to MCI, n = 68
Intercept, 4 years before MCI	0.36	0.09	295	3.77	<0.001a
Intercept, 3 years before MCI	0.28	0.08	295	3.40	<0.001a
Intercept, 2 years before MCI	0.20	0.08	295	2.64	0.009b
Intercept, 1 years before MCI	0.12	0.08	295	1.56	0.12
Intercept, at the time of MCI	0.04	0.09	295	0.47	0.64
Time	−0.08	0.03	295	3.12	0.002b
MCI to dementia, n = 135
Intercept, 4 years before dementia	−0.03	0.12	592	−0.23	0.82
Intercept, 3 years before dementia	−0.26	0.10	592	2.67	0.007b
Intercept, 2 years before dementia	−0.49	0.07	592	−6.48	<0.001a
Intercept, 1 years before dementia	−0.71	0.06	592	−11.3	<0.001a
Intercept, at the time of dementia	−0.94	0.06	592	−14. 72	<0.001a
Time	−0.23	0.03	592	−7.68	<0.001a

^ap < 0.001.

^bp < 0.05.

CN = clinically normal; MCI = mild cognitive impairment; SE = standard error.