Unadjusted odds ratios for variables retained in the final logistic regression model predicting death within 48 hours of ICU discharge in development cohort.

aBMI considered missing if <10 or >125.
b47,231 (10.0%) missing and considered to be “False”.
cBased on average pH value. pH missing in 358,425 (76.3% of patients).
Normal  =  pH between 7.34 and 7.44 or absence of data; Acidosis  =  pH lower than 7.34; and Alkalosis  =  pH greater than 7.44. d. 441,635 (94.0%) serum lactate values missing. Absence of a serum lactate value was treated as 0. e. Glucose considered missing if <10 mg/dL. f. Variability defined by the coefficient of variation.
BMI  =  Body Mass Index; LOS  =  Length of Stay; SpO2 =  Percent Oxygen Saturation; GCS  =  Glasgow Coma Scale.