Table 3

Proportion of obese (BMI ⩾30 kg/m2) and non-obese (BMI <30 kg/m2) patients who fulfilled each ARDS criterion on at least 1 day during their ICU stay

ARDS criteriaNumber (%) of patients who fulfilled criteria on at least one ICU day
BMI <30 kg/m2 (n = 1315)BMI ⩾30 kg/m2 (n = 480)p Value
Intubated with PaO2/FiO2 ⩽200569 (43%)249 (52%)0.001
Bilateral infiltrates on chest radiograph764 (58%)286 (59%)0.6
Exclusion of left atrial heart failure1154 (88%)404 (84%)<0.05
  • ARDS, acute respiratory distress syndrome; BMI, body mass index; ICU, intensive care unit.