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Table 1 Baseline clinical characteristics of crude population *

From: Comparison of 9-month angiographic outcomes of Resolute zotarolimus-eluting and everolimus-eluting stents in a real world setting of coronary intervention in Korea

  EES (N = 405) R-ZES (N = 274) P value
Age, years 63.9 ± 11.8 64.9 ± 11.9 0.264
Male 297 (73.3%) 197 (71.9%) 0.680
Coexisting condition    
Diabetes mellitus 157 (38.8%) 101 (36.9%) 0.616
Hypertension 283 (69.9%) 172 (62.8%) 0.056
Dyslipidemia 140 (34.6%) 91 (33.2%) 0.714
Cerebrovascular disease 35 (8.7%) 18 (6.6%) 0.325
Peripheral artery disease 9 (2.2%) 9 (3.3%) 0.398
Chronic renal failure 15 (3.7%) 14 (5.1%) 0.374
Cardiovascular risk factors    
Current smoker 103 (25.4%) 77 (28.1%) 0.439
Previous PCI 69 (17.0%) 40 (14.6%) 0.396
Previous CABG 5 (1.2%) 5 (1.8%) 0.531
Previous MI 33 (8.1%) 25 (9.1%) 0.842
Clinical indications    
Stable angina 189 (46.7%) 124 (45.3%) 0.717
Unstable angina 99 (24.4%) 64 (23.4%) 0.745
Acute myocardial infarction 117 (28.9%) 86 (31.4%) 0.485
Emergency PCI for acute STEMI 41 (10.1%) 34 (12.4%) 0.351
Left ventricular ejection fraction 57.11 ± 10.40 56.25 ± 11.71 0.374
Severe LV dysfunction (LVEF < 30%) 6 (1.5%) 7 (2.6%) 0.317
Multivessel disease 275 (67.9%) 207 (75.5%) 0.031
Complex patient 293 (72.3%) 208 (75.9%) 0.328
  1. * Data are number (%), unless otherwise indicated. Plus-minus values are means ± SD.
  2. Complex patient : Complex patients (= off label use) were defined as having at least one of the following characteristics: serum creatinine concentration of 140 umol/L (1.6 mg/dL) or more; left ventricular ejection fraction < 30%; an acute myocardial infarction within the previous 72 hours; more than one lesion per vessel; two or more vessels treated with a stent; a lesion longer than 27mm; or bifurcated lesion, bypass graft, in-stent restenosis, unprotected left main coronary artery, presence of thrombus, or total occlusion.
  3. Abbreviations: CABG coronary artery bypass graft, EES everolimus-eluting stent, F/U follow-up, IQR interquartile range, LV left ventricle, LVEF left ventricular ejection fraction, MI myocardial infarction, PCI percutaneous coronary intervention, R-ZES Resolute zotarolimus eluting-stent, STEMI myocardial infarction with ST-segment elevation.