Exposure to ambient fine particulate matter during pregnancy and gestational weight gain

Environment International
Jiaqiang LiaoYuanyuan Li

Abstract

Gestational weight gain (GWG) is increasingly reported to be associated with adverse birth outcomes. However, the effect of PM2.5 exposure during pregnancy on GWG is unknown. We investigated the associations between the exposure to PM2.5 and GWGs during three pregnancy trimesters based on a prospective birth cohort. Data were obtained from 2029 pregnant women who participated in a birth cohort between January 2013 and October 2014 in Wuhan, China. A spatial-temporal land use regression model was used to estimate the trimester and overall pregnancy exposures of PM2.5 of each pregnant woman. The relationships between PM2.5 exposure and GWG were estimated using linear mixed models. The median value of GWG was 2.0 kg (interquartile range (IQR): 4.0) in the first trimester, 6.5 kg (IQR: 3.5) in the second trimester, and 7.0 kg (IQR: 3.5) in the third trimester, respectively. The exposure to PM2.5 was peaked in the first trimester (median concentration: 117.3 μg/m3 (IQR: 71.9)). After adjustment for potential confounders, each 10 μg/m3 increase in PM2.5 was consistently associated with increases in GWG in overall pregnancy (0.14 kg, 95% confidence interval (CI): 0.12, 0.17), the first (0.15 kg, 95%CI: 0.12, 0.18), second (0.15 kg, 95...Continue Reading

Citations

Feb 12, 2020·Journal of Exposure Science & Environmental Epidemiology·Qiuping WenWei Xia
Jun 17, 2020·Journal of Developmental Origins of Health and Disease·Delicia Shu-Qin OoiEvelyn Xiu-Ling Loo
May 18, 2020·Ecotoxicology and Environmental Safety·Pengpeng WangYunhui Zhang
Nov 23, 2021·The Science of the Total Environment·Li ShangMei Chun Chung

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