Fig. 4
From: Fetal sex determination in twin pregnancies using non-invasive prenatal testing
Performance of multinomial logistic regression model to predict fetal sex in twin pregnancies. Fetal fraction estimation of each sample is presentedas % based on SeqFF method. Each icon size correspond to a representation of fetal fraction estimation (10%, 15%, and 20%) in which the DNA samplesare scaled accordingly. One-step regression analysis was used to discriminate fetal sex in MCDA/MCMA twin pregnancies a. A two-step regressionanalysis was applied in DCDA samples separately b. DCDA dichorionic diamniotic; MCDA monochorionic diamniotic; MCMA monochorionic monoamniotic; FF female–female; FM female–male; MM male–male
