Clinical characteristics of patients enrolled in the research.

We found no significant variations in age, BMI, GCT, infant birth weight and nulliparous percentage between the preeclampsia patients and the normal control pregnant women enrolled in our current study. However, blood pressure (SBP and DBP) and proteinuria (24-hour urine protein) of preeclampsia patients is significantly higher than those of controls. The preeclampsia patients delivered earlier and had relative low weight babies. Data are shown as mean ± SEM, and differences between normal and SP patients were analyzed with Student-t test. BMI, body mass index; 50g GCT, 50g glucose tolerance test; SBP, systolic blood pressure; DBP, diastolic blood pressure; NA, not available.