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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.