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Meta-analyses of maternal exposure to atmospheric particulate matter and risk of congenital anomalies in offspring

作者:Guangxia Yu

关键词:Congenital anomalies;PM2.5;PM10;Trimester exposure;Meta-analyses

发表时间:2021

发表期刊:Environmental Science and Pollution Research

证据类型:系统评价/Meta分析

Congenital anomalies are the main causes of infant death and disability. Previous studies have suggested that maternal exposure to particulate matter is related to congenital malformation. However, the conclusions of this study remain controversial. Hence, meta-analyses were performed to assess the relationship between maternal exposure to particulate matter and the risk of congenital anomalies. The Medline, Embase, and Web of Science databases were systemically searched from inception until August 2020 to find articles related to birth defects and particulate matter. The pooled risk estimated for the combination of pollution outcomes was calculated for each study by performing fixed effects or random effects models. The existence of heterogeneity and publication bias in relevant studies was also examined. Thirty studies were included in the analysis. A statistically increased summary risk valuation was found. PM10 exposure was associated with an increased risk of congenital heart disease, neural tube defects, and cleft lip with or without cleft palate (OR per 10 μg/m3 = 1.05, 95% CI, 1.03 1.07; OR per 10 μg/m3 = 1.04, 95% CI, 1.01 1.06; OR per 10 μg/m3 = 1.03, 95% CI, 1.01 1.06). Maternal exposure to particulate matter might be associated with an increased risk of congenital anomalies. Our results indicate the dangers of particulate matter exposure on fetal development and the importance of protection against exposure to such particles during pregnancy