Temperature, placental abruption and stillbirth

Environment International
Amal RammahElaine Symanski

Abstract

Pregnant women may be vulnerable to changes in ambient temperature and warming climates. Recent evidence suggests that temperature increases are associated with placental abruption, a risk factor for stillbirth. We investigated the effect of acute exposures to apparent temperature on stillbirths in Harris County, Texas, 2008-2013. We conducted a case-crossover study to investigate the association between temperature and stillbirth among 708 women. We used data from the National Climatic Data Center to estimate maternal exposure to daily average apparent temperature over the days (lag days 1 through 6) preceding the stillbirth event. We employed symmetric bidirectional sampling to select six control periods one to three weeks before and after each event and applied conditional logistic regression to examine associations between increases of apparent temperature and stillbirths during the warm season (May-September). We adjusted for fine particulate matter (PM2.5), nitrogen dioxide (NO2) and ozone (O3) and used stratified analysis to examine differences in risk by maternal race/ethnicity. We also examined the association among stillbirths with and without placental abruptions. Independent of air pollutant exposures, a 10 °F incre...Continue Reading

Citations

Oct 28, 2019·Environmental Health Perspectives·Lindsey Konkel
Nov 6, 2020·BMJ : British Medical Journal·Matthew Francis ChersichUNKNOWN Climate Change and Heat-Health Study Group
Jan 23, 2021·Scientific Reports·Tamás Hajdu, Gábor Hajdu
May 12, 2021·Environmental Research·David A Savitz, Hui Hu
Nov 13, 2021·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·Saiuj BhatSangeeta Malla Bhat

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