The comparison results suggests that term preeclampsia has a similar trend as that between term preeclampsia and term delivery group, but did not have statistical significance (Fig. 9C); The comparison of preterm preeclampsia and term preeclampsia suggested that T cell CD8, T cell CD4, and eosinophils increased significantly in the placenta of preterm preeclampsia; monocytes, neutrophils were significantly increased in the placenta of term preeclampsia (Fig. 9E). This evidence concerns the gene CD4 and preeclampsia.