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. 2021 Jun 25;17(3):233–239. doi: 10.4244/EIJ-D-20-01162

Table 1. Baseline clinical characteristics.

BF-CoCr N=97 BF-SS N=98
Age, years, mean±SD 66.7±10.2 65.6±10.0
Female gender, n (%) 24 (24.7) 21 (21.4)
Body mass index, mean±SD 28.1±4.1 28.3±4.1
Coronary risk factors Diabetes mellitus, n (%) 30 (30.9) 32 (32.7)
Past or current smoker, n (%) 58 (61.7) 61 (64.9)
Hypercholesterolaemia, n (%) 65 (67) 69 (70.4)
Hypertension, n (%) 59 (60.8) 69 (70.4)
Comorbidities Renal insufficiency, n (%) 4 (4.1) 6 (6.1)
Liver disease, n (%) 3 (3.1) 1 (1)
Chronic lung disease, n (%) 9 (9.3) 16 (16.3)
Previous stroke, n (%) 5 (5.2) 11 (11.2)
History of malignancy, n (%) 8 (8.2) 5 (5.1)
Congestive heart failure, n (%) 5 (5.2) 6 (6.1)
Previous MI, n (%) 20 (20.6) 22 (22.7)
Previous PCI, n (%) 26 (26.8) 32 (32.7)
Previous CABG, n (%) 2 (2.1) 6 (6.1)
Indication for PCI Chronic coronary syndrome, n (%) 45 (46%) 50 (51%)
Unstable angina, n (%) 13 (13.4) 7 (7.1)
Non-STEMI, n (%) 21 (21.6) 25 (25.5)
STEMI, n (%) 18 (18.6) 16 (16.3)
No significant differences were observed between groups except for bifurcation lesions (p=0.019). BF-CoCr: BioFreedom cobalt-chromium stent; BF-SS: BioFreedom stainless steel stent; CABG: coronary artery bypass graft; MI: myocardial infarction; PCI: percutaneous coronary intervention; STEMI: ST-segment elevation myocardial infarction