Predicting Hypertensive Disease in the First Trimester of Pregnancy: Risk Models and Analysis of Serum D-dimer Levels Combined with Plasma Pregnancy-Associated Protein A, Free β-Subunit of Human Chorionic Gonadotropin, and Fetal Nuchal Translucency

Figure 2

ROC curve for the prediction value of GH, PE, SPE, or HDP: (a) ROC curve for the prediction of GH; (b) ROC curve for the prediction of PE; (c) ROC curve for the prediction of SPE; (d) ROC curve for the prediction of . GH: gestational hypertension; PE: preeclampsia; SPE: severe preeclampsia; DD: D-dimer; PAPP-A: pregnancy-associated plasma protein A; free β-hCG: free beta human chorionic gonadotropin; NT: nuchal translucency; AUC: area under curve; ROC: receiver operating characteristic.

(a) GH ROC

(b) PE ROC

(c) SPE ROC

(d) HDP ROC