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Fig. 4 | BMC Pulmonary Medicine

Fig. 4

From: Deep vein thrombosis in acute respiratory distress syndrome caused by bacterial pneumonia

Fig. 4

Kaplan–Meier survival curves showing the 28-day survival for patients with and without DVT in the ARDS cohort caused by bacterial pneumonia. (log-rank test). According to ROC curve, when the cut-off value of prediction probability is 0. 413, the Youden index is the highest, the model has a good prediction effect. For further verification, when P ≥ 0. 413 is the predicted DVT, the P < 0. 413 is the predicted non-DVT, and then the predicted DVT and non-DVT was used as a factor to construct Kaplan–Meier survival curve based on whether or not the patient died within 28 days. ARDS, acute respiratory distress syndrome; DVT, deep vein thrombosis; ROC, receiver operating characteristic

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