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Annals of Intensive Care
Fig. 1 | Annals of Intensive Care

Fig. 1

From: P/FP ratio: incorporation of PEEP into the PaO2/FiO2 ratio for prognostication and classification of acute respiratory distress syndrome

Fig. 1

Change of severity classifications when P/FP ratio is used instead of P/F ratio for severities. Severe refers to a ratio of ≤ 100, moderate refers to a ratio of 101–200, mild refers to a ratio of 201–300, non-ARDS refers to a ratio of > 300 mmHg or mmHg/cmH2O. Green ovals represent patients who were reclassified to a more severe category. Blue ovals represent patients who were reclassified to a milder category. Red ovals represent patients whose categories remained unchanged. Definition of abbreviations: ARDS  acute respiratory distress syndrome; P/F  ratio of the partial pressure of arterial oxygen (PaO2) to the fraction of inspired oxygen (FiO2); P/FP = (PaO2 * 10)/(FiO2 * positive end-expiratory pressure)

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