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. 2017 Mar 8;69(4):731–738. doi: 10.1161/HYPERTENSIONAHA.116.08620

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© 2017 The Authors.

Hypertension is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited.

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Figure 1. — Receiver operating characteristic curve analysis of the relationship between (A) sFlt-1 (soluble fms-like tyrosine kinase 1) to PlGF (placental growth factor) ratio at 20 weeks of gestational age (wkGA) and (1) preeclampsia with delivery before 28 wkGA or (2) preeclampsia with delivery before 37 weeks where the onset of hypertension was before 28 wkGA (n=4), (B) sFlt-1:PlGF at 28 wkGA and preeclampsia leading to preterm birth (n=26), and (C) sFlt-1:PlGF at 36 wkGA and severe preeclampsia (n=106). The continuous sFlt-1:PlGF ratio is used, and the area under the receiver operating characteristic curve (AUROCC) with 95% confidence interval (CI) is given for each analysis.