Evidence map›Paper›PMID 38750350›Full record

ArticleNature medicine2024

Heat exposure induced risks of preterm birth mediated by maternal hypertension.

Liyun Wang, Jiangli Di, Qiong Wang, Huanhuan Zhang, Wei Zhao, Xiaoming Shi, Qian Di, John S Ji, Wannian Liang, Cunrui Huang

Abstract read
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In one paragraph

Article in Nature medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Heat Stress and Placental Abruption: A Space-Time Stratified Case-Crossover Study.BJOG : an international journal of obstetrics and gynaecology · 2026
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  7. Dynamic Associations between Ambient PMEnvironment & health (Washington, D.C.) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Liyun Wang *School of Public Health, Sun Yat-sen University, Guangzhou, China.ORCID 0000-0002-3832-5965
Jiangli Di *National Center for Women and Children's Health, Chinese Center for Disease Control and Prevention, Beijing, China.
Qiong WangSchool of Public Health, Sun Yat-sen University, Guangzhou, China.
Huanhuan ZhangSchool of Public Health, Zhengzhou University, Zhengzhou, China.
Wei ZhaoNational Center for Women and Children's Health, Chinese Center for Disease Control and Prevention, Beijing, China. zhaowei85@chinawch.org.cn.ORCID 0000-0003-2919-3937
Xiaoming ShiNational Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China.ORCID 0000-0002-7071-571X
Qian DiVanke School of Public Health, Tsinghua University, Beijing, China.ORCID 0000-0002-1584-4770
John S JiVanke School of Public Health, Tsinghua University, Beijing, China.
Wannian LiangVanke School of Public Health, Tsinghua University, Beijing, China.
Cunrui HuangVanke School of Public Health, Tsinghua University, Beijing, China. huangcunrui@tsinghua.edu.cn.ORCID 0000-0002-9139-8354

Funding

National Natural Science Foundation of China (National Science Foundation of China) 42175183
6 · The paper itself

Abstract

Heat exposure is associated with an increased risk of preterm birth (PTB), with previous work suggesting that maternal blood pressure may play a role in these associations. Here we conducted a cohort study of 197,080 singleton live births across 8 provinces in China from 2015 to 2018. The study first estimated the associations between heat exposure, maternal hypertension and clinical subtypes of PTB, and then quantified the role of maternal hypertension in heat and PTB using mediation analyses. We show that heat exposure (>85th, 90th and 95th percentiles of local temperature distributions) spanning from conception to the 20th gestational week was associated with a 15-21% increase in PTB, and a 20-22% increase in medically indicated PTB. Heat exposure is likely to increase the risk of maternal hypertension and elevated blood pressure. Maternal hypertension mediated 15.7% and 33.9% of the effects of heat exposure (>90th percentile) on PTB and medically indicated PTB, respectively. Based on this large-population study, we found that exposure to heat in early pregnancy can increase the risk of maternal hypertension, thereby affecting the incidence of PTB.

Indexed as

Hot TemperatureHypertensionPremature BirthAdultBlood PressureChinaCohort StudiesFemaleHumansInfant, NewbornPregnancyRisk Factors

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.