ADIPOQ and hydrops fetalis: Leptin concentrations in the HF group were significantly higher (NC 5.1 ± 3.2 ng/dl vs. HF 62.6 ± 3.9 ng/dl, p <0.0001), whereas adiponectin levels were lower than those of the NC group (NC 8.2 ± 0.4 mg/dl vs. HF 6.2 ± 0.2 mg/dl, p = 0.003).