Table 3: Multivariate predictors of SBT successful outcome.

Variable OR 95% CI p
ScvO2 end(%) 1.122 1.005-1.257 0.041
SaO2 end(%) 1.405 1.041-1.897 0.026
Age (y) 0.961 0.923-0.999 0.049
Hb (g/dl) 1.549 1.080-2.221 0.017

Hb: hemoglobin concentration; SaO2: arterial oxygen saturation; ScvO2: central venous oxygen saturation