ArticleBMC pregnancy and childbirth2018
Exploring associations of maternal exposure to ambient temperature with duration of gestation and birth weight: a prospective study.
Article in BMC pregnancy and childbirth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- 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
- Maternal exposure to ambient temperature and risk of preterm birth in Chengdu, China, from 2017 to 2020: a cohort study.BMC public health · 2025Article
- Small RNA sequencing analysis of exosomes derived from umbilical plasma in IUGR lambs.Communications biology · 2023Article
- Adverse effects of temperature on perinatal and pregnancy outcomes: methodological challenges and knowledge gaps.Frontiers in public health · 2023Review
- Relationship between birth weight and ambient temperature during pregnancy in a cross-sectional study of the residents of Suzhou, China.Frontiers in public health · 2023Article
- Using non-parametric Bayes shrinkage to assess relationships between multiple environmental and social stressors and neonatal size and body composition in the Healthy Start cohort.Environmental health : a global access science source · 2022Article
- Ambient temperature and term birthweight in Latin American cities.Environment international · 2022Article
- Exposure to night-time light pollution and risk of prolonged duration of labor: A nationwide cohort study.Birth (Berkeley, Calif.) · 2022Article
- Extreme Heat and Pregnancy Outcomes: A Scoping Review of the Epidemiological Evidence.International journal of environmental research and public health · 2022Article
- Effect of Elevated Ambient Temperature on Maternal, Foetal, and Neonatal Outcomes: A Scoping Review.International journal of environmental research and public health · 2022Article
- The effect of prenatal temperature and PMEnvironment international · 2021Article
- Effects of Season of Birth and Meteorological Parameters on Serum Bilirubin Levels during the Early Neonatal Period: A Retrospective Chart Review.International journal of environmental research and public health · 2021Article
- Explaining the Black-White Disparity in Preterm Birth: A Consensus Statement From a Multi-Disciplinary Scientific Work Group Convened by the March of Dimes.Frontiers in reproductive health · 2021Review
- Estimating the Combined Effects of Natural and Built Environmental Exposures on Birthweight among Urban Residents in Massachusetts.International journal of environmental research and public health · 2020Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundEvidence suggests the possible impact of ambient high temperature on fetal growth and birth outcomes. However, little is known about the relative impact of exposure to heat and cold and the possible vulnerable window during pregnancy.
methodsData on a total of 237,585 pregnant women from January 1st, 2001 to December 31st, 2010 were acquired from the Queensland Health, Australia. Daily data on meteorological factors, including ambient temperature, relative humidity, barometric pressure, and air pollutants, such as PM
resultsA J-shaped association between minimum temperature at conception and duration of gestation was observed after adjusting for seasonality and other confounders. Compared to women who were exposed to the minimum temperature of 15-20 °C in the first gestational week, exposure to the minimum temperature of > 20 °C significantly increased the duration of gestation by 0.029 weeks (95% CI: 0.008, 0.049). A cumulative effect was found when exposure across the first four weeks was examined. There was an inverted U-shaped relationship between minimum temperature at delivery and the duration of gestation. Compared to women exposed to 15-20 °C, exposure to minimum temperature of > 20 °C and ≤ 10 °C was associated with a shortened gestation by 0.030 weeks (95% CI: -0.052, - 0.008) and 0.018 weeks (95% CI: -0.057, - 0.004), respectively. By contrast, an inverse relationship between maximum temperature and birth weight was observed. Compared to exposure to the maximum temperature of > 30 °C in the last week of pregnancy, maternal exposure to 20-25 °C and < 20 °C significantly increased birth weight by 0.011 kg (95% CI: 0.008, 0.018) and 0.018 kg (95% CI: 0.010, 0.031), respectively. Similarly, a mild cumulative effect was observed when maximum temperature exposure across the four weeks before delivery was evaluated.
conclusionsThe finding emphasized the importance of keeping an optimal temperature range during pregnancy for reducing the risk of preterm birth and low birthweight.
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