Maternal Serum Angiogenic Factor sFlt-1 to PlGF Ratio in Preeclampsia: A Useful Marker for Differential Diagnosis and Prognosis Evaluation in Chinese Women

Figure 2

ROC curves for PE diagnosis. Receiver operating characteristic (ROC) curves of the sFlt-1/PlGF ratio were constructed in all PE (, 95% CI, 0.969-1.000), early onset PE (, 95% CI, 0.989-1.000), and late onset PE (, 95% CI, 0.822-1.000). When cutoff of 21.5 was used, the NPV for the diagnosis of PE was 97.9%, 100%, and 91.7% for all, early onset, and late onset PE. When cutoff of 97.2 was used, the PPV for the diagnosis of PE was 97.5%, 100%, and 75.0% for all, early onset, and late onset PE.

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