Factors Associated with the Use of Drug-Eluting Stents in Patients Presenting with Acute ST-Segment Elevation Myocardial Infarction
Table 1
Association of clinical variables with DES or BMS use in primary PCI for STEMI.
Variable (at time of PCI)
Bare-metal stent ()
Drug-eluting stent ()
value
Demographic
Age (years)
62 (34–99)
59 (27–88)
0.34
Gender (male)
41 (63.1)
70 (54.7)
0.28
Race (African American)
56 (86.2)
103 (80.5)
0.42
Income by ZIP code
28026 (15866–100377)
31571 (14205–100377)
0.11
Insurance status
0.11
No insurance
15 (23.1)
18 (14.1)
0.16
Medicaid
9 (13.8)
15 (11.7)
0.65
Medicare
24 (36.9)
40 (31.3)
0.52
Private
17 (26.2)
55 (43.0)
0.03
Lack of PMD or cardiologist
52 (80.0)
79 (61.7)
0.01
Past medical history
Coronary artery disease
10 (15.4)
46 (35.9)
<0.01
Prior revascularization
11 (16.9)
38 (29.7)
0.15
Diabetes
10 (15.4)
37 (28.9)
0.05
Hypertension
46 (70.8)
93 (72.7)
0.87
Hyperlipidemia
21 (32.3)
63 (49.2)
0.03
Chronic renal insufficiency
8 (12.3)
8 (6.3)
0.17
Cancer (any)
6 (9.2)
6 (4.7)
0.22
Tobacco use (past or current)
40 (61.5)
59 (26.1)
0.05
Illicit drug (all) or alcohol abuse
23 (35.4)
10 (7.8)
<0.01
Medications
Aspirin
17 (26.2)
54 (42.2)
0.04
Plavix
3 (4.6)
18 (4.1)
0.05
Warfarin
5 (7.7)
3 (2.3)
0.12
ACE-inhibitor/ARB
11 (16.9)
45 (35.2)
0.01
Beta-blocker
14 (21.5)
47 (36.7)
0.03
Statin
8 (12.3)
48 (37.5)
<0.01
Data expressed as median (range) or count (%) for continuous or discrete variables, respectively. value refers to DES versus BMS comparisons. DES = drug-eluting stents. BMS = bare-metal stents. PCI = percutaneous coronary intervention. STEMI = ST-segment elevation myocardial infarction. ACE-inhibitor = angiotensin-converting-enzyme inhibitor. ARB = angiotensin receptor blocker.
