Table 1.

Patient characteristics following myocardial infarction stratified by prior cardiovascular disease, diabetes, and chronic kidney disease

	Prior CVD (n = 89,920)a	Diabetes only (n = 46,032)	CKD only (n = 13,459)	Diabetes and CKD (n = 13,319)
Age, years, mean (SD)	77.1 (10.3)	72.0 (11.3)	81.1 (9.7)	77.4 (8.9)
Cohort, %
MarketScan	8.2	18.9	3.5	4.1
Medicare	91.8	81.1	96.5	95.9
Males, %	53.3	50.1	44.6	45.4
Race/ethnicity, %b
Black, Non-hispanic	5.5	9.0	7.7	11.7
White, Non-hispanic	90.4	82.8	87.7	80.1
Other	4.0	8.0	4.7	8.1
Geographic region, %
West	14.4	15.5	16.2	16.3
Midwest	24.8	24.4	28.3	26.5
Northeast	20.6	18.0	18.0	17.1
South	40.2	42.1	37.5	40.0
Area-level income, %b
< $35,000	7.9	9.7	7.6	10.4
$35,000–$49,999	33.3	34.5	32.0	35.0
$50,000–$74,999	36.8	36.6	39.6	36.5
≥ $75,000	22.0	19.2	20.8	18.2
Smoking, %	49.3	40.2	41.2	40.1
Hypertension, %	92.8	90.6	93.5	97.8
History of heart failure, %	40.1	31.9	46.7	54.4
Depression, %	30.2	25.8	28.3	30.3
Prior MI hospitalization, %	18.9	0.0	0.0	0.0
Prior CABG/PCI outside of an MI event, %	5.2	0.0	0.0	0.0
CABG/PCI during the MI event related to the index date, %	52.0	66.5	45.7	51.3
Cardiologist care, %	57.7	29.6	24.5	23.5
Endocrinologist care, %	2.3	8.6	2.4	11.0
Use of insulin, %	0.0	25.0	0.0	40.0
Statin use and intensity, %
No statin	39.6	51.3	63.1	41.0
Low	5.7	6.4	5.8	7.5
Moderate	34.9	32.4	25.5	38.4
High	19.8	9.9	5.6	13.1
Ezetimibe use, %	4.2	2.3	1.6	2.9
Antihypertensive medication use, %	93.0	91.4	92.5	95.7

CABG coronary artery bypass graft, CKD chronic kidney disease, CVD cardiovascular disease, PCI percutaneous coronary intervention, MI myocardial infarction, SD standard deviation

^aThis group included patients with prior cardiovascular disease without diabetes or chronic kidney disease. Patients with prior cardiovascular disease and diabetes or chronic kidney disease were excluded from the analysis

^bAmong Medicare beneficiaries only