When analysing these correlations separately in women who had preeclampsia (n = 4), stronger associations were found between ABPM parameters and PlGF levels for 24 h systolic BP (r = − 0.967; p = 0.033) and systolic BP in the daytime period (r = 0.973; p = 0.027), as well as the sFlt-1/PlGF ratio (Fig. 4b); however, these associations were not observed in women who presented with isolated gestational hypertension (without preeclampsia). Here, PGF is linked to preeclampsia.