Two hundred fifty-five Chinese women with sFlt-1/PlGF measured at 20 + 0 to 40 + 0 weeks were analyzed in this study, of which fifty-nine were classified into healthy pregnancy (Group A), forty-five into pregnancy complicated with preeclampsia (Group B), one hundred into other diseases during pregnancy (Group C) and fifty-one into pregnancy with small-for-gestational age and/or low birth weight neonates (Group D).Table 1shows the characteristics of participants in four groups. This evidence concerns the gene PGF and preeclampsia.