PGF and preeclampsia: However, PlGF was only negatively associated with nighttime SBP and DBP(P < 0.05), with no correlation with daytime BP (P > 0.05).Combining sFlt-1/PlGF and ABPM model, showed sFlt-1/PlGF (aOR = 2.01 (1.69–2.36)), Nighttime DBP (aOR = 1.14 (1.02–1.28)) contributed to preeclampsia prediction, and had improved predictive value compared to ABPM or sFlt-1/PlGF models alone(P < 0.05).