Table 3 Multivariate analysis for duration of ICU stay

Age (months old)

0.007

0.54

Gender (male)

−0.4

0.85

RACHS-1

2.5

0.049

Lowest temperature during CPB (°C)

−0.6

0.08

CPB time (min)

0.006

0.17

The use of epinephrine after weaning from CPB

15.1

<0.001

The duration between Lac_FIRST and Lac_Last (min)

−0.24

0.65

Lac_FIRST (mmol/L)

0.7

0.42

LAC⊿≦0 mmol/L

reference

LAC⊿ 0-1mmol/L (vs. LAC⊿≦0 mmol/L)

2.1

0.42

LAC⊿ 1-2mmol/L (vs. LAC⊿≦0 mmol/L)

0.8

0.81

LAC⊿ >2mmol/L (vs. LAC⊿≦0 mmol/L)

10.3

0.028