ArticlePaediatric and perinatal epidemiology2022
Maternal factors and risk of spontaneous preterm birth due to high ambient temperatures in New South Wales, Australia.
Article in Paediatric and perinatal epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 26 citations in OpenAlex.
- Association between extreme heat exposure and risk of preterm birth and its effect modifiers: a systematic review and meta-analysis.Journal of exposure science & environmental epidemiology · 2026Article
- Effects of heat exposure on self-reported heat strain symptoms among pregnant and postpartum women in South Africa.npj digital public health · 2026Article
- Fetal programming under maternal heat stress: a focus on skeletal muscle growth and nutrition in livestock.Journal of developmental origins of health and disease · 2025Review
- Prenatal exposure to ambient temperature and preterm birth: a historical cohort.International journal of epidemiology · 2025Article
- Increased late preterm birth risk and altered uterine blood flow upon exposure to heat stress.EBioMedicine · 2023Article
- [The climate crisis as an ethical challenge].Wiener medizinische Wochenschrift (1946) · 2023Article
- Acute air pollution and temperature exposure as independent and joint triggers of spontaneous preterm birth in New South Wales, Australia: a time-to-event analysis.Frontiers in public health · 2023Article
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5 authors at 1 institution in 1 country.
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Abstract
backgroundExposure to high ambient temperatures has been shown to increase the risk of spontaneous preterm birth. Determining which maternal factors increase or decrease this risk will inform climate adaptation strategies.
objectivesThis study aims to assess the risk of spontaneous preterm birth associated with exposure to ambient temperature and differences in this relationship between mothers with different health and demographic characteristics.
methodsWe used quasi-Poisson distributed lag non-linear models to estimate the effect of high temperature-measured as the 95th percentile of daily minimum, mean and maximum compared with the median-on risk of spontaneous preterm birth (23-36 weeks of gestation) in pregnant women in New South Wales, Australia. We estimated the cumulative lagged effects of daily temperature and analyses on population subgroups to assess increased or decreased vulnerability to this effect.
resultsPregnant women (n = 916,678) exposed at the 95th percentile of daily mean temperatures (25ºC) had an increased risk of preterm birth (relative risk 1.14, 95% confidence interval 1.07, 1.21) compared with the median daily mean temperature (17℃). Similar effect sizes were seen for the 95th percentile of minimum and maximum daily temperatures compared with the median. This risk was slightly higher among women with diabetes, hypertension, chronic illness and women who smoked during pregnancy.
conclusionsHigher temperatures increase the risk of preterm birth and women with pre-existing health conditions and who smoke during pregnancy are potentially more vulnerable to these effects.
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