Table.

Demographic characteristics of 3,539,244 Medicare beneficiaries aged 65 and older by whether they had Alzheimer’s Diagnosis and previous sleep disorder.

	No Alzheimer’s Diagnosis				Alzheimer’s Diagnosis
	No sleep disorder		Sleep disorder		No sleep disorder		Sleep disorder
	N	(%)	N	(%)	N	(%)	N	(%)
N	1,230,304	(69.52)	539,318	(30.48)	847,031	(47.87)	922,591	(52.13)
Age
Median (IQR)	84	(78,89)	84	(78,87)	84	(78, 89)	84	(78, 89)
65-74	183,217	(14.89)	75,760	(14.05)	120,904	(14.27)	138,073	(14.97)
75-84	503,073	(40.89)	228,107	(42.30)	344,618	(40.69)	386,562	(41.90)
85 or older	544,014	(44.22)	235,451	(43.66)	381,509	(45.04)	397,956	(43.13)
Sex
Female	790,338	(64.24)	351,959	(65.26)	553,059	(65.29)	589,238	(63.87)
Male	439,966	(35.76)	187,359	(34.74)	293,972	(34.71)	333,353	(36.13)
Race
Asian	24,894	(2.02)	8,213	(1.52)	15,489	(1.83)	17,618	(1.91)
Black	122,095	(9.92)	38,664	(7.17)	86,326	(10.19)	74,433	(8.07)
Hispanic	33,330	(2.71)	8,082	(1.50)	20,388	(2.41)	21,024	(2.28)
Other/Unknown	3,737	(0.30)	2,180	(0.40)	2,612	(0.31)	3,305	(0.36)
White	1,046,248	(85.04)	482,179	(89.41)	722,216	(85.26)	806,211	(87.39)
Metropolitan
Rural	227,150	(18.46)	103,716	(19.23)	151,786	(17.92)	179,080	(19.41)
Urban	1,003,154	(81.54)	435,602	(80.77)	695,245	(82.08)	743,511	(80.59)
Region
Midwest	288,392	(23.44)	128,752	(23.87)	204,613	(24.16)	212,531	(23.04)
Northeast	233,223	(18.96)	102,381	(18.98)	171,480	(20.24)	164,124	(17.79)
Other	5,404	(0.44)	2,088	(0.39)	5,305	(0.63)	2,187	(0.24)
South	514,490	(41.82)	224,698	(41.66)	336,445	(39.72)	402,743	(43.65)
West	188,795	(15.35)	81,399	(15.09)	129,188	(15.25)	141,006	(15.28)