Table 1: Demographic data.

Patient no.Age (years)SexDiagnosisMechanical ventilation

154MSevere intra-abdominal sepsisYes
261MPneumonia, severe sepsisYes
372FSepsis, acute renal failureYes
469MCOPD exacerbationYes
551MMultitraumaYes
619FMultitraumaYes
738FPostpartum hemorrhage, shockYes
852MPneumoniaYes
954FUrinary tract infection, sepsisYes
1070MBowel perforation, after surgeryYes
1156MHead trauma, multiple fracturesYes

COPD: chronic obstructive pulmonary disease; ARDS: acute respiratory distress syndrome.