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.