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Table 1 Characteristics of Patients Undergoing PCI by Stent Type, 1998-2007

From: Accounting for the mortality benefit of drug-eluting stents in percutaneous coronary intervention: a comparison of methods in a retrospective cohort study

 

Drug-Eluting Stent

Bare Metal Stent

PValue

N

19,103

16,335

 

Age (years)

64.1

63.2

< 0.001

Male Sex (%)

70.8

70.6

0.72

Race/Ethnicity (%)

  

< 0.001

   Asian

9.8

7.0

 

   Black

5.3

5.3

 

   Hispanic

9.4

8.4

 

   White, non-Hispanic

65.8

72.1

 

   Other

9.7

7.3

 

Comorbidities (%)

   

   Diabetes

33.8

26.2

< 0.001

   Hypertension

68.5

49.6

< 0.001

   Prior MI

13.0

11.1

< 0.001

   PCI Indication:

  

< 0.001

STEMI

16.0

27.5

 

NSTEMI

28.0

19.3

 

Stable or unstable angina

57.3

54.8

 

   Prior PCI

19.1

14.1

< 0.001

   Prior CABG

5.7

5.3

0.12

   Congestive Heart Failure

4.6

3.4

< 0.001

   Prior Stroke

1.6

1.2

0.005

   Peripheral Arterial Disease

4.3

3.3

< 0.001

   Glomerular Filtration Rate

  

< 0.001

> 90

15.0

16.2

 

60 - 89

39.7

33.4

 

30 - 59

21.5

15.2

 

15 - 30

1.9

1.3

 

< 15 or HD

0.7

0.5

 

Unknown

21.1

33.3

 

   Systemic Malignancy

5.7

5.8

0.75

   Prior Gastrointestinal Bleeding

2.3

1.8

< 0.001

   Chronic Lung Disease

18.3

21.9

< 0.001

Medications

   

   β-Blockers

50.0

40.1

< 0.001

   Clopidogrel

12.7

6.3

< 0.001

   Statin

51.7

34.8

< 0.001

   ACE-I/ARB

41.9

27.8

< 0.001

   Warfarin

3.8

3.0

< 0.001

  1. Abbreviations: MI, myocardial infarction; STEMI, ST-elevation myocardial infarction; NSTEMI, non-ST-elevation myocardial infarction; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft surgery.