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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.