Demographics Patient Cohort.

All values presented as n (%) or median (IQ range) as appropriate.Demographics of patients enrolled within 24 hours of initiation of mechanical ventilation and/or sepsis onset. Groups were compared by Wilcoxon Rank Sum for continuous variables or Pearson X2 for dichotomous variables. Septic patients had a higher incidence of shock and subsequently higher SAPS II scores on the first hospital day. Control patient diagnosis included: seizure (2), stroke (1), lung cancer (1), drug overdose (1), carbon monoxide poisoning (1), pulmonary embolism (1), COPD without pneumonia (3), cirrhosis (1), and cardiovascular disease (5).