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Table 2 Distribution of risk factors in the model development cohort

From: Development of a predictive model for major adverse cardiac events in a coronary artery bypass and valve population

Variable   All Procedures CABG AVR/MVR/MVrpr CABG + Valve
   n=4270 n=3095 n=696 n=479
   (%) (%) (%) (%)
Age   67 (IQR 59–74) 66 (IQR 58–73) 67 (IQR 57–75) 74 (IQR 67–80)
Female   25 21 39 31
BMI (kg/m2) <25 22 20 28 26
  25-30 40 40 41 43
  30-35 25 27 18 23
  >35 13 13 13 8
Diabetes   36 40 23 34
Pre-op Afib   12 9 21 22
COPD   15 14 18 17
CVD   14 14 13 17
PVD   17 19 7 18
Frailty   4 3 6 8
EF<40   15 15 11 20
NYHA I 35 44 13 13
  II 23 23 29 21
  III 26 20 42 42
  IV 15 13 17 24
HGB (g/L) <115 50 52 49 38
  115-135 33 32 32 41
  >135 17 15 19 21
Pre-op creatinine <115 74 76 78 62
(μmol/L) 115-140 14 13 12 18
  140-160 5 5 3 8
  >160 7 7 7 11
Redo sternotomy   7 4 19 11
Status Elective 47 44 59 44
  In-house 41 41 36 43
  Urgent 9 11 4 10
  Emergent 3 4 2 3
  1. BMI Body mass index, HGB Hemoglobin, Afib Atrial Fibrillation, COPD Chronic Obstructive Pulmonary Disease, CVD Cerebro Vascular Disease, PVD Peripheral Vascular Disease, EF Ejection Fraction, NYHA New York Heart Association.