marginally significantp < 0.10
A stepwise multiple variable logistic regression model was created, using death within 24 h as a dependent variable that considered variables which were marginally significant ( p < 0.10) in the univariate logistic regression as covariates (APACHE scores >20, >65 years of age, sepsis, FiO 2 per 10 % increase, epinephrine dose >10 μg/min, norepinephrine dose >20 μg/min, vasopressin dose >0.02 μg/min).