ANG and preeclampsia: However, we included 4 studies regarding ANG levels in preeclampsia in the meta-analysis [67, 72–74], which showed that there was no significant difference in ANG levels between pregnant women who developed preeclampsia and pregnant women who did not develop preeclampsia (pooled SMD = 0.438, 95% CI = −0.598 to 1.474, p = 0.407) (FigureS5).