The impact of high ambient temperatures on delivery timing and gestational lengths

@article{Barreca2019TheIO,
  title={The impact of high ambient temperatures on delivery timing and gestational lengths},
  author={Alan Barreca and Jessamyn Schaller},
  journal={Nature Climate Change},
  year={2019},
  volume={10},
  pages={77-82}
}
Evidence suggests that heat exposure increases delivery risk for pregnant women. Acceleration of childbirth leads to shorter gestation, which has been linked to later health and cognitive outcomes. However, estimates of the aggregate gestational losses resulting from hot weather are lacking in the literature. Here, we use estimated shifts in daily county birth rates to quantify the gestational losses associated with heat in the United States from 1969 to 1988. We find that extreme heat causes… 

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References

SHOWING 1-10 OF 38 REFERENCES

Climate Extremes and the Length of Gestation

Extreme heat was associated with a reduction in the average gestational age of children delivered the next day, suggesting an immediate effect of this exposure on pregnant women.

High ambient temperature and the risk of preterm delivery.

High ambient temperature was significantly associated with preterm birth for all mothers, regardless of maternal racial/ethnic group, maternal age, maternal education, or sex of the infant, and greater associations were observed for younger mothers, blacks, and Asians.

Extreme Heat and Risk of Early Delivery Among Preterm and Term Pregnancies

High ambient temperature and extreme heat episodes may trigger earlier delivery among term births, and associations were stronger with early-term than with full-term delivery.

Relationship between season of birth, temperature exposure, and later life wellbeing

It is found that an extra day with mean temperatures above 32 °C in utero and in the first year after birth is associated with a 0.1% reduction in adult annual earnings at age 30, and that household air-conditioning adoption, which increased dramatically over the time period studied, mitigates nearly all of the estimated temperature sensitivity.

Climate Change and Birth Weight.

Whether the temperature variation predicted to be part of climate change, including extreme high and low temperatures, historically has had negative health consequences through its effect on babies while in utero is documents.

Maternal exposure to ambient temperature and the risks of preterm birth and stillbirth in Brisbane, Australia.

Examination of the relation between ambient temperature and preterm birth and stillbirth in Brisbane, Australia, between 2005 and 2009 provides strong evidence of an association between increased temperature and increased risk of stillbirth and shorter gestation.

The relation of gestation length to short-term heat stress.

The data propose no special precautions for pregnant women exposed to short-term heat stress of the intensity evaluated in this study, however, the possible effects of chronic heat exposure on gestation cannot be ruled out.