Extreme Temperature Exposure and Risks of Preterm Birth Subtypes Based on a Nationwide Survey in China.

ABSTRACT:

Background

Previous studies have reported that ambient temperature may affect perinatal outcomes. However, whether extreme temperature affects the risk of preterm birth (PTB) remains controversial. Studies on the associations of extreme temperature with PTB subtypes are lacking.

Objectives

We aimed to investigate the associations of extreme climate events with the risks of PTB and its subtypes, discerning possible modifiers.

Methods

Data on all singleton deliveries were obtained from the China Labor and Delivery Survey (CLDS), a nationwide investigation implemented in 2015 and 2016. PTB was defined as gestational weeks <37 and then categorized as early (24-34 wk) and late PTBs (35-36 wk), and clinical subtypes [spontaneous PTB, preterm premature rupture of the fetal m

SUBMITTER: Yu G 

PROVIDER: S-EPMC10431497 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature