LEP and preeclampsia: Elevated leptin concentrations (14.5 ng/mL) were associated with a 3.8-fold increased risk of preeclampsia (OR 3.8) (Table 2) whereas low soluble leptin receptor (SLR) (<28.5 ng/mL) was associated with a 6.3-fold increased risk of preeclampsia 6.3-fold (OR 6.3, 95%CI 1.7–23.2).