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Table 1 Baseline and surgical characteristics

From: Moderate hyperoxic versus near-physiological oxygen targets during and after coronary artery bypass surgery: a randomised controlled trial

  Hyperoxia n = 25 Normoxia n = 25
Demographics
 Age, years 66 (61–71) 68 (66–71)
 Male, n (%) 25 (100) 25 (100)
 Body surface area, m2 2.1 (1.9–2.1) 2.1 (1.9–2.0)
 Caucasian race, n (%) 25 (100) 25 (100)
Medical history
 Smoker, n (%) 16 (64) 17 (68)
 Diabetes, n (%) 6 (24) 5 (20)
 Hypertension, n (%) 7 (28) 13 (52)
 Hypercholesterolaemia, n (%) 5 (25) 8 (32)
 Renal insufficiency, n (%) 1 (4) 5 (20)
 Cardiac arrest, n (%) 1 (4) 1 (4)
 Cerebrovascular accident, n (%) 1 (4) 2 (8)
Cardiovascular history
 Atrial fibrillation, n (%) 3 (12) 2 (8)
 Myocardial infarction, n (%) 14 (56) 8 (32)
 PCI, n (%) 6 (24) 6 (24)
 Left ventricular function
  Good, n (%) 19 (76) 17 (68)
  Moderate, n (%) 5 (20) 6 (24)
  Poor, n (%) 1 (4) 2 (8)
Baseline laboratory parameters
 Troponin-T (μg/L) 0.012 (0.009–0.016) 0.014 (0.009–0.031)
 CK (U/L) 86 (57–126) 77 (56–102)
 CK-MB (μg/L) 0 (0–1.9) 0 (0–0)
 Serum creatinine (mmol/L) 78 (69–93) 88 (74–108)
 Haemoglobin (g/L) 142 (139–148) 140 (132–148)
Surgical characteristics
 Number of grafts, n 4 (3–4) 4 (4–5)
 Surgery time, min 240 (212–283) 245 (220–280)
 CPB time, min 103 (85-122) 103 (95-133)
 Cross clamp time, min 66 (56-80) 69 (60-85)
 Blood cardioplegia, n (%) 2 (8) 6 (24)
  1. Data are presented as median (interquartile range) unless otherwise stated. Renal insufficiency was defined as an estimated glomerular filtration rate <60 mL/min. CK creatine kinase, CPB cardiopulmonary bypass, MB muscle/brain, PCI percutaneous coronary intervention