Association of PM_2.5 Exposure on Birthweight: Racial and Ethnic Disparities.

ABSTRACT:

Background

The few studies that have examined the impact of PM_2.5 on reduced birthweight across different percentiles of the conditional birthweight distribution have produced equivocal findings, and only two assessed whether these associations varied by race/ethnicity or by racial/ethnic composition of the neighbourhood where mothers lived.

Objective

We evaluated racial/ethnic differences in the association between prenatal PM_2.5 exposure and birthweight across the birthweight distribution in a retrospective cohort study comprising 102,986 full-term singleton births in Harris County, Texas (2019-2020).

Methods

Census tract-level daily PM_2.5 concentrations were estimated using 'XGBoost-IDW Synthesis', and averaged exposures over pregna

SUBMITTER: Chen WJ 

PROVIDER: S-EPMC12658311 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature