PIGF and preeclampsia: The combination of maternal clinical factors, including mean arterial pressure (MAP) and uterine artery pulsatility index (UtA-PI), and also maternal biomarkers such as pregnancy-associated plasma protein and PIGF was estimated to be 54.2% for preeclampsia at any gestation for 9.2% FPR with 76.1% and 42.4% detection rate for preterm and term preeclampsia, respectively [65], yet it can be inferred from the same data that FPR will be higher when considering nulliparous only.