Fig. 4

Distribution of ventilator mode stratified by PARDS severity at three time points (onset of PARDS, and 24 and 48 h after onset). The blue area represents CMV and the orange area HFOV. At onset 135 met PALICC criteria. 98% of the subjects with mild PARDS received CMV, 84.4% of the moderate group received CMV and 65.5% of the subjects meeting PALICC criteria for severe PARDS at onset received CMV. Twenty-four hours after onset still 105 met PALICC criteria (45 mild, 34 moderate, 26 severe). Of the group with mild PARDS 95.5% received CMV, 44.4% of the moderate group received CMV 24 h after onset and only 15.4% of the subjects with severe PARDS 24 h after onset received CMV. Forty-eight hours after onset 90 subject still met PALICC criteria for PARDS (36 mild, 34 moderate, 20 severe). Of the group with mild PARDS after 48 h 86.1% received CMV at that moment, of the moderate group 41.1% received CMV, of the severe group 0% received CMV