Compared to the non-MetS group, the MetS group had a higher age, BMI by stage, parity, history of gestational diabetes (%), history of gestational hypertension (%), TC, TG, LDL, blood glucose, serum ferritin, hemoglobin, Hs-CRP, vitamin A, systolic pressure and diastolic pressure (P < 0.05). This evidence concerns the gene CRP and preeclampsia.