Ambient temperature and ozone exposure increases the risk of preterm birth in Northeast China: a time series analysis.

ABSTRACT:

Background

Prenatal exposure to meteorological factors and air pollutants may increase preterm birth (PTB) risk, but existing research is limited and inconsistent. Heilongjiang Province is located in Northeast China and is the northernmost and highest latitude province. Yet the association between meteorological factors, air pollutants, and PTB in this region remains unclear.

Methods

PTB cases were collected between July 1, 2019, and June 30, 2023. Meteorological factors were collected for the same period. The exposure-response relationships and lagged effects of meteorological factors and air pollutants on PTB were analyzed using the Distributed Lag Non-linear Model (DLNM), with a maximum lag of 30 days.

Results

A total of 3,267 PTB cases were included. Low and extre

SUBMITTER: Geng W 

PROVIDER: S-EPMC12714875 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature