Fig. 3From: Risk stratification using SpO2/FiO2 and PEEP at initial ARDS diagnosis and after 24 h in patients with moderate or severe ARDSROC curve for SpO2/FiO2 versus PaO2/FiO2 < 100. Dotted lines represent 95% confident intervals, AUC = 0.928. AUC, area under the curveBack to article page