ArticleSao Paulo medical journal = Revista paulista de medicina
Are there differences in birth weight according to sex and associations with maternal exposure to air pollutants? A cohort study.
Article in Sao Paulo medical journal = Revista paulista de medicina. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 17 citations in OpenAlex.
- Sex differences in delivery and neonatal characteristics of new-borns from the "MAMI-MED" cohort.Frontiers in public health · 2025Article
- Does Exposure to Ambient Air Pollution Affect Gestational Age and Newborn Weight?-A Systematic Review.Healthcare (Basel, Switzerland) · 2024Review
- Apgar values lower than 7 associated with mortality in premature newborns: A retrospective study.Saudi medical journal · 2022Observational
- Impact of children born with low birth weight on stunting and wasting in Sindh province of Pakistan: a propensity score matching approach.Scientific reports · 2021Article
- Exposure to ambient particulate matter and biomass burning during pregnancy: associations with birth weight in Thailand.Journal of exposure science & environmental epidemiology · 2021Article
- The factors affecting the physical development of neonates in pregnant women with or without gestational diabetes mellitus.PloS one · 2021Article
- Maternal exposure to benzene and toluene and preterm birth. A longitudinal study.Sao Paulo medical journal = Revista paulista de medicinaArticle
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
CONTEXT AND
objectiveSeveral effects of exposure to air pollutants on human health are known. The aim of this study was to identify whether exposure of pregnant women to air pollutants contributes towards low birth weight and which sex is more affected. DESIGN AND
settingLongitudinal study using data on newborns from mothers living in São José do Rio Preto (SP) who were exposed to air pollutants in 2012-2013.
methodsA hierarchical model on three levels was built using maternal and newborn variables and environmental concentrations of particulate matter, ozone and nitrogen dioxide in quartiles. Preterm new-borns, twins and newborns with birth defects were excluded and exposure windows of 30, 60 and 90 days before delivery were considered.
results8,948 newborns were included: 4,491 males (50.2%) and 4,457 females (49.8%); 301 newborns presented low birth weight (3.4%). The mean weight differed between males (3281.0 g) and females (3146.4 g) (P < 0.001). Exposure to ozone was significantly associated with low birth weight in both sexes in the 30-day window (odds ratio, OR = 1.38) and 90-day window (OR = 1.48); and among females, in the 30-day window (OR = 1.58) and 90-day window (OR = 1.59). Exposure to particulate matter had a paradoxical protective effect. No association was found among male newborns.
conclusionsFemale newborns showed greater susceptibility to maternal exposure to air pollutants. Studies on low birth weight in relation to maternal exposure to air pollutants should deal with males and females separately.
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