mester at delivery), severity of pre-eclampsia, gestational age at delivery, and birth weight (Table 1) were comparable with those from previous studies from Western Europe. 2,3,5In light of the lack of ethnicity-related differences in ADMA concentrations in our sample, ethnicity does not appear to explain our results.Thus, our results support the hypothesis that preeclampsia in low-and high-risk populations may have distinct underlying causes.