Which diagnostic criteria is indicative of mild adult respiratory distress syndrome (ARDS)?

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The Berlin Definition of ARDS is as follows: timing-within 1 week of known clinical insult or new or worsening respiratory symptoms; chest imaging-bilateral opacities not fully explained by effusions,lobar or lung collapse,or nodules; origin of edema-respiratory failure not fully explained by cardiac failure or fluid overload; need objective assessment to exclude hydrostatic edema if no risk factor present; oxygenation-mild (200 mg Hg less than PaO₂/FiO₂ less than or equal to 300 mm Hg with positive end-respiratory airway pressure (PEEP)or constant positive airway pressure greater than or equal to 5 cm H₂O),moderate (100 mg Hg less than PaO₂/FiO₂ less than or equal to 200 mm Hg with PEEP greater than or equal to 5 cm H₂O),or severe (PaO₂/FiO₂ less than or equal to 100 mm Hg with PEEP greater than or equal to 5 cm H₂O).The mortality rate for ARDS is estimated to be 34% to 58%.

Which Diagnostic Criteria Is Indicative of Mild Adult Respiratory Distress