CXCL8 and hydrops fetalis: HF class was positively correlated with IL-8 concentration (r = 0.327; p = 0.023) and negatively correlated with CETP (r = − 0.354; p = 0.014), total cholesterol (r = − 0.315; p = 0.029), LDL-C (r = − 0.360; p = 0.012), non-HDL-C (r = − 0.325; p = 0.024) concentration.