Prenatal Exposure to Air Pollution and Pre-Labor Rupture of Membranes in a Prospective Cohort Study: The Role of Maternal Hemoglobin and Iron Supplementation

Lin Wu; Wanjun Yin; Lijun Yu; Yuhong Wang; Xiao-min Jiang; Ying Zhang; Fangbiao Tao; Ruixue Tao; Peng Zhu

doi:10.1289/ehp11134

April 1, 2023Environmental Health PerspectivesOpen Access

Prenatal Exposure to Air Pollution and Pre-Labor Rupture of Membranes in a Prospective Cohort Study: The Role of Maternal Hemoglobin and Iron Supplementation

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Key Points

To evaluate the relationship between prenatal air pollution exposure and the risk of pre-labor rupture of membranes, and to determine the mediating roles of maternal hemoglobin levels and iron supplementation.
Prospective cohort design assessing gestational exposure to ambient air pollution across pregnancy windows.
Evaluation of maternal hemoglobin concentrations, anemia status, and iron supplement intake as potential mediators and effect modifiers of pre-labor rupture of membranes risk.
Prenatal air pollution exposure is linked to an elevated risk of pre-labor rupture of membranes, with the strongest vulnerability observed during gestational weeks 21 to 24.
Maternal hemoglobin levels partially mediate the association between ambient air pollution exposure and increased rupture risk.
Iron supplementation in pregnant individuals with anemia displays protective benefits against membrane rupture under low-to-medium air pollution exposure.

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Implication

Prospective cohort study reveals prenatal air pollution increases rupture of membrane risk, suggesting iron supplementation during anemia may provide protection.

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Wu et al. (2023) studied this question.

synapsesocial.com/papers/69e6054762acec12c37f8b1c https://doi.org/10.1289/ehp11134

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Prenatal Exposure to Air Pollution and Pre-Labor Rupture of Membranes in a Prospective Cohort Study: The Role of Maternal Hemoglobin and Iron Supplementation

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Prenatal Exposure to Air Pollution and Pre-Labor Rupture of Membranes in a Prospective Cohort Study: The Role of Maternal Hemoglobin and Iron Supplementation

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