Exposure to low concentrations of PM_2.5 and its constituents with preterm birth in Shenzhen, China: a retrospective cohort study.

ABSTRACT:

Background

Due to the Air Pollution Prevention and Control Measures issued by the Chinese government, air quality has significantly improved, particularly with respect to PM_2.5. However, studies on the relationship between low concentrations of PM_2.5 and preterm birth (PTB) remain limited in China.

Objective

To examine the associations between low concentrations of PM_2.5 and its constituents and PTB.

Methods

This retrospective cohort study was conducted from July 2021 to April 2023 in Shenzhen, China. Data on questionnaires and pregnancy outcomes were collected for each participant. Using the Tracking Air Pollution in China (TAP) dataset, we assessed the concentrations of PM_2.5 and its chemical constituents, including sulfat

SUBMITTER: Zhu M 

PROVIDER: S-EPMC11974226 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature