ArticleEnvironmental research2017
Ambient temperature and risk of cardiovascular events at labor and delivery: A case-crossover study.
Article in Environmental research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.
What it found
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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.
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.
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Who cites it
13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.
- A systematic review and meta-analysis of heat exposure impacts on maternal, fetal and neonatal health.Nature medicine · 2025Pooled it
- Climate Change-Related Environmental Exposures and Perinatal and Maternal Health Outcomes in the U.S.International journal of environmental research and public health · 2023Pooled it
- Associations between high temperatures in pregnancy and risk of preterm birth, low birth weight, and stillbirths: systematic review and meta-analysis.BMJ (Clinical research ed.) · 2020Pooled it
- The neuropsychiatric toll of rising temperatures on women's health in low-income and middle-income countries: a scoping review.BMJ global health · 2025Article
- Climate change, evolution, and reproductive health: The impact of water insecurity and heat stress on pregnancy and lactation.Evolution, medicine, and public health · 2025Review
- Identifying groups at-risk to extreme heat: Intersections of age, race/ethnicity, and socioeconomic status.Environment international · 2024Article
- Extreme heat, pregnancy and women's well-being in Burkina Faso: an ethnographical study.BMJ global health · 2024Article
- Racial Disparities in Climate Change-Related Health Effects in the United States.Current environmental health reports · 2022Review
- The Changing Climate and Pregnancy Health.Current environmental health reports · 2022Review
- Effect of Elevated Ambient Temperature on Maternal, Foetal, and Neonatal Outcomes: A Scoping Review.International journal of environmental research and public health · 2022Article
- Risk of cardiovascular events during labor and delivery associated with acute ambient temperature changes.The journal of climate change and health · 2021Article
- Article
- Machine learning approaches to predict peak demand days of cardiovascular admissions considering environmental exposure.BMC medical informatics and decision making · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundExtreme ambient temperatures are linked to cardiac events in the general population, but this relationship is unclear among pregnant women. We estimated the associations and attributable risk between ambient temperature and the risk of cardiovascular event at labor/delivery, and investigated whether these associations vary by maternal race/ethnicity.
methodsWe identified 680 women with singleton deliveries affected by cardiovascular events across 12 US sites (2002-2008). Average daily temperature during the week before, delivery day, and each of the seven days before delivery was estimated for each woman. In a case-crossover analysis, exposures during these hazard periods were compared to two control periods before and after delivery using conditional logistic regression adjusted for other environmental factors.
resultsDuring the cold season (October-April), 1°C lower during the week prior to delivery was associated with a 4% (95% CI: 1-7%) increased risk of having a labor/delivery affected by cardiovascular events including cardiac arrest and stroke. During the warm season (May-September), 1°C higher during the week prior was associated with a 7% (95% CI: 3-12%) increased risk. These risks translated to 13.4 and 23.9 excess events per 100,000 singleton deliveries during the cold and warm season, respectively. During the warm season, the risks were more pronounced on days closer to delivery and Black women appeared to be more susceptible to the same temperature increase.
conclusionSmall changes in temperature appear to affect the risk of having cardiovascular events at labor/delivery. Black women had a differentially higher warm season risk. These findings merit further investigation.
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Registered trials
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.