Table 1B.

B. MCI to dementia

	Nighttime behaviors	N	Median [Interquartile Range]	Range [Min, Max]	p
Age at first visit (y)	Present	2,636	72.0 [65.0, 78.0]	[21.0, 99.0]	<0.001
	Absent	9,645	73.0 [67.0, 79.0]	[18.0, 102.0]
Education (y)	Present	2,627	16.0 [12.0, 18.0]	[0, 26.0]	0.483
	Absent	9,618	16.0 [13.0, 18.0]	[0, 30.0]
NPI weight	Present	2,578	0.27 [0.09, 0.46]	[0, 1.00]	<0.001
	Absent	9,350	0.00 [0.00, 0.18]	[0, 0.91]
		n	Nonwhite (n, %)	White (n, %)	p
Race	Present	2,636	459 (17.4%)	2,177 (82.6%)	<0.001
	Absent	9,645	2,349 (24.4%)	7,296 (75.6%)
			Male (n, %)	Female (n, %)
Sex	Present	2,636	1,448 (54.9%)	1,188 (45.1%)	<0.001
	Absent	9,645	4,330 (44.9%)	5,315 (55.1%)