Table 1.

Sample Characteristics by Diabetes Status Among Adults With AMI and AIS^a

	AMI patients			AIS patients
Characteristics	Without DM (n=1,997)	With DM (n=1,310)	p-valueb	Without DM (n=1,521)	With DM (n=939)	p-value
Age (years), %			<0.05			<0.05
18–44	5.2	2.4		6.4	2.3
45–64	33.5	35.2		29.7	30.7
≥65	61.3	62.3		63.9	67.0
Female, %	34.7	36.2	<0.05	56.0	51.5	0.18
Race/ethnicity, %			<0.05			<0.05
Non-Hispanic white	84.0	74.1		78.7	68.6
Non-Hispanic black	7.4	10.5		12.0	16.8
Hispanics	5.8	9.4		5.5	9.7
Other races	2.8	6.1		3.7	4.8
Married, %	56.0	62.9	<0.05	50.5	49.1	0.77
Education, %			<0.05			<0.05
Less than high school	20.1	25.7		19.5	26.1
High school graduate	46.7	44.9		46.2	45.5
Some college or higher	33.1	29.3		34.3	28.5
Census region, %			<0.05			0.19
Northeast	17.9	19.7		17.7	19.0
Midwest	25.5	25.4		23.7	23.1
South	38.1	40.8		38.4	39.9
West	18.5	14.2		20.1	18.0
Health insurance coverage, %			<0.05			<0.05
Any private	56.9	53.9		52.9	43.4
Public only	39.3	41.9		43.6	54.1
Uninsured	3.9	4.2		3.5	2.5
Current smoker, %	20.3	17.4	<0.05	16.1	15.6	0.19
Self-rated medical health, %			<0.05			<0.05
Good	65.8	45.2		58.6	44.5
Fair	22.2	33.5		25.9	32.6
Poor	12.0	21.3		15.5	22.9
Mean total medical expenditure (in 2014 $)	15,087	22,609	<0.05	16,185	22,599	<0.05

Note: Boldface indicates statistical significance (p<0.05).

^aData were from the 2008–2014 Medical Expenditure and Panel Survey. Adults refer to individuals aged ≥18 years. All statistics were appropriately weighted to ensure national representativeness. AMI was identified by ICD-9-CM code 410. AIS was identified by ICD-9-CM codes 433, 434, and 436. DM was identified by ICD-9-CM code 250.

^bt-test was used to test the mean difference between individuals with and without DM; χ² test was used to test the distribution difference of categories between individuals with and without DM.

AIS, acute ischemic stroke; AMI, acute myocardial infarction; DM, diabetes mellitus.