PGF and preeclampsia: Preeclampsia, fetal complications, and maternal complications can be predicted based on a model involving traditional parameters (gestational age, parity, proteinuria, and mean arterial blood pressure).24 Adding the sFlt-1/PlGF ratio to this traditional model improved the predictive value (C-index) for all outcomes, and the same was true for serum chemerin, while the highest predictive values were obtained when adding both the ratio and serum chemerin (Figure 1D).