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Table 2 Intraoperative continuous variables

From: A comparative analysis of predictive models of morbidity in intensive care unit after cardiac surgery – Part II: an illustrative example

Acronym Description (units) Training set Testing set Cut-off
   Mean SD Mean SD  
Xclampt Aortic clamp time (min) 79.3 32 79.2 34 90↑
CPBt Cardio-pulmonary bypass time (min) 113 42 115 49 120↑
HR-end Heart rate at end of surgery (min-1) 91.3 13 91.7 12 100↑
Intra-CI Cardiac index (l/min/m2) 2.67 0.74 2.68 0.70 n.s.
Diur Diuresis (cl/hour) 166 82 169 84 n.s.
TBU Transfused blood (ml) 67.8 216 67.2 216 300↑
HR-ICU Heart rate at ICU arrival (min-1) 91.3 13 91.7 12 100↑
  1. ↑ or ↓: increased morbidity risk for values greater or less than cut-off, respectively (n.s.: not statistically significant); SD, standard deviation; ICU, intensive care unit.