Extreme heat and its association with social disparities in the risk of spontaneous preterm birth.
birth outcomes
climate change
environmental justice
heatwave
segregation
temperature
Journal
Paediatric and perinatal epidemiology
ISSN: 1365-3016
Titre abrégé: Paediatr Perinat Epidemiol
Pays: England
ID NLM: 8709766
Informations de publication
Date de publication:
Jan 2022
Jan 2022
Historique:
revised:
21
10
2021
received:
08
03
2021
accepted:
24
10
2021
entrez:
24
12
2021
pubmed:
25
12
2021
medline:
7
1
2022
Statut:
ppublish
Résumé
Climate change is increasing the frequency and intensity of heatwaves. Prior studies associate high temperature with preterm birth. We tested the hypotheses that acute exposure to extreme heat was associated with higher risk of live spontaneous preterm birth (≥20 and <37 completed weeks), and that risks were higher among people of colour and neighbourhoods with heat-trapping landcover or concentrated racialised economic disadvantage. We conducted a retrospective cohort study of people giving birth between 2007 and 2011 in Harris County, Texas (Houston metropolitan area) (n = 198,013). Exposures were daily ambient apparent temperature (AT The frequency of preterm birth was 10.3%. A quarter (26.8%) of people were exposed to AT Ambient heat was associated with spontaneous preterm birth, with stronger associations earlier in pregnancy and in racially and economically disadvantaged neighbourhoods, suggesting climate change may worsen existing social inequities in preterm birth rates.
Sections du résumé
BACKGROUND
BACKGROUND
Climate change is increasing the frequency and intensity of heatwaves. Prior studies associate high temperature with preterm birth.
OBJECTIVES
OBJECTIVE
We tested the hypotheses that acute exposure to extreme heat was associated with higher risk of live spontaneous preterm birth (≥20 and <37 completed weeks), and that risks were higher among people of colour and neighbourhoods with heat-trapping landcover or concentrated racialised economic disadvantage.
METHODS
METHODS
We conducted a retrospective cohort study of people giving birth between 2007 and 2011 in Harris County, Texas (Houston metropolitan area) (n = 198,013). Exposures were daily ambient apparent temperature (AT
RESULTS
RESULTS
The frequency of preterm birth was 10.3%. A quarter (26.8%) of people were exposed to AT
CONCLUSIONS
CONCLUSIONS
Ambient heat was associated with spontaneous preterm birth, with stronger associations earlier in pregnancy and in racially and economically disadvantaged neighbourhoods, suggesting climate change may worsen existing social inequities in preterm birth rates.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
13-22Subventions
Organisme : Robert and Patricia Switzer Foundation
Organisme : Energy & Resources Group at the University of California, Berkeley
Organisme : Alex Farrell Memorial Graduate Fellowship
Organisme : EPA
ID : 91744701
Pays : United States
Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2021 John Wiley & Sons Ltd.
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