Table 1.

Characteristics of samples

			Anti-dementia Drug Users		P value
		All	No	Yes
		N = 12,764,487	N = 8,347,410	N = 4,417,076
		%	%	%
Age					< 0.001
65–74		22.68	24.19	19.82
75–84		34.05	31.29	39.27
≥ 85		43.27	44.52	40.91
Sex					0.858
Male		37.97	37.83	38.25
Female		62.03	62.17	61.75
Race					0.387
Non-Hispanic Whites		83.66	83.29	84.37
Non-Hispanic Blacks		9.67	10.16	8.76
Hispanics		2.77	2.39	3.50
Others		3.02	3.11	2.83
Missing		0.88	1.05	0.54
Married Status					< 0.001
Married		39.84	37.20	44.83
Widowed		43.14	43.68	42.12
Divorced/Separated		11.32	12.58	8.95
Single		5.14	5.99	3.52
Missing		0.56	0.55	0.58
Education Level					0.154
< High School		10.49	10.89	9.73
High School		41.13	39.61	44.02
>High School		37.13	37.65	36.16
Missing		11.24	11.85	10.08
Income					0.872
< $10,000		13.15	13.27	12.93
$10,000 - $24,999		35.83	36.32	34.90
$25,000 - $49,999		22.64	22.23	23.42
≥ $50,000		28.38	28.18	28.74
Residence					0.881
Metropolitan		78.38	78.29	78.55
Non-metropolitan		21.62	21.71	21.45
Census					0.206
Northeast		18.77	19.08	18.19
Midwest		23.45	22.38	25.45
South		40.11	39.76	40.77
West		17.67	18.77	15.59