Development of late onset preeclampsia in association with traffic-related air pollution

Background and objective: Preeclampsia is a serious complication of the second half of pregnancy. Previous clinical studies indicate a potential harmful effect of local air pollution on pregnancy outcome, including an increased risk of preterm delivery and preeclampsia. We analyzed the association between the occurrence of preeclampsia and traffic-related air pollution. We especially stratified preeclampsia into mild/severe and early/late onset subgroups. Methods: Based on retrospective data from our electronic medical records we selected 50 cases consisting of pregnant women who were treated for preeclampsia in…