A Case‐Crossover Study of Temperature and Infant Mortality in <scp>C</scp>alifornia

Basu, Rupa; Pearson, Dharshani; Sie, Lillian; Broadwin, Rachel

doi:10.1111/ppe.12204

Cited by 33 publications

(33 citation statements)

References 33 publications

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“…Lastly, two studies examining immediate neonatal impacts due to ambient temperature exposure were included in this review. Both demonstrated that heat waves increase stress in neonates, either as a function of heat-related neonatal intensive care unit (NICU) admissions [ 44 ], or through heat-related infant death [ 45 ]. Kakkad et al [ 44 ] specifically explored NICU admissions on extreme heat days in Ahmedabad, India, where most births occur outside of hospitals and extreme heat is considered to be an excess of 42 °C; heat waves resulted in an increase of admissions.…”

Section: Resultsmentioning

confidence: 99%

Heat Exposure and Maternal Health in the Face of Climate Change

Kuehn

McCormick

2017

IJERPH

158

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Climate change will increasingly affect the health of vulnerable populations, including maternal and fetal health. This systematic review aims to identify recent literature that investigates increasing heat and extreme temperatures on pregnancy outcomes globally. We identify common research findings in order to create a comprehensive understanding of how immediate effects will be sustained in the next generation. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guide, we systematically reviewed articles from PubMed and Cochrane Reviews. We included articles that identify climate change-related exposures and adverse health effects for pregnant women. There is evidence that temperature extremes adversely impact birth outcomes, including, but not limited to: changes in length of gestation, birth weight, stillbirth, and neonatal stress in unusually hot temperature exposures. The studies included in this review indicate that not only is there a need for further research on the ways that climate change, and heat in particular, may affect maternal health and neonatal outcomes, but that uniform standards for assessing the effects of heat on maternal fetal health also need to be established.

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Section: Resultsmentioning

confidence: 99%

Heat Exposure and Maternal Health in the Face of Climate Change

Kuehn

McCormick

2017

IJERPH

158

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“…Ülkemizde sağlık çalışanlarına yapılan bir araştırmada riskli olmasına rağmen bebekler uyurken yastık kullanılabileceğini söyleyen pediatri hemşirelerin oranı %32, çocuk doktorlarının ise %23,8 olarak belirtilmiştir (25). Bebeğin yaşam/uyuma ortamının aşırı sıcak ya da soğuk olması bebekleri olumsuz etkilemekte hatta ölümlerine sebep olmaktadır (26). Ayrıca literatürde bebeklerin yorganlarının ayak uçlarının yatağın altına sıkıştırılmaması da ani bebek ölüm sendromu açısından risk faktörü olarak tanımlanmaktadır (27).…”

Section: Veri Toplamaunclassified

Mothers’ Preferences for Safe Sleep in Newborns

Erdoğan¹,

Turan²

2018

jtsm

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It is extremely important to provide safe sleep for babies to be protected from sudden infant death syndrome. The aim of this study is to determine the preferences of newborn mothers to sleep their babies. Materials and Methods: The study was conducted with a total of 300 mothers. The data were collected with a questionnaire developed in the light of the literature by researchers. Results: Eighty percent of the mothers put their babies to bed in a nonsupine position in daytime sleep and night sleep, 87% of the mothers put their babies to bed in a non-supine position after nutrition; 51% used a soft mattress, 63% used a pillow when they put their babies to bed and 42% shared their beds with their babies. Conclusion: It was determined that mothers have risky behaviors that may cause sudden infant death syndrome while sleeping their baby.

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“…The case–crossover design is ideal for assessing associations between short-term exposures and rare outcomes such as SIDS, 26 and has been used in previous studies assessing heat exposure and SIDS. 19,22 The case–crossover design compares each subject's exposure in a time period just prior to a case-defining event with that subject's exposure at other times. Since each subject is his or her own control, all measured or unmeasured time-invariant subject characteristics (e.g., sex, race, socioeconomic status, year/season of birth) are inherently adjusted for, such that there is no confounding by these characteristics.…”

Section: Methodsmentioning

confidence: 99%

“…28 We assessed the effect of AC on temperature-related SIDS risk by stratifying the analysis by level of air conditioning prevalence (i.e., lower, middle, and upper tertiles). Lastly, as apparent temperature has been used in previous studies examining temperature-related mortality, 22,29 we compared the risk estimates derived from apparent temperature and air temperature. Apparent temperature is defined as an individual's perceived air temperature at a given humidity level.…”

Section: Methodsmentioning

confidence: 99%

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Ambient Temperature and Sudden Infant Death Syndrome in the United States

et al. 2017

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Background Sudden infant death syndrome (SIDS) is a leading cause of infant mortality in the United States. While thermal stress is implicated in many risk factors for SIDS, the association between ambient temperature and SIDS remains unclear. Methods We obtained daily individual-level infant mortality data and outdoor temperature data from 1972 to 2006 for 210 United States cities. We applied a time-stratified case-crossover analysis to determine the effect of ambient temperature on the risk of SIDS by season. We stratified the analysis by race, infant age, and climate. Results There were a total of 60,364 SIDS cases during our study period. A 5.6°C (10°F) higher daily temperature on the same day was associated with an increased SIDS risk of 8.6% (95% confidence interval (CI): 3.6%, 13.8%) in the summer, compared to a 3.1% decrease (95% CI: -5.0%, -1.3%) in the winter. Summer risks were greater among Black infants (18.5%, 95% CI: 9.3%, 28.5%) than White infants (3.6%, 95% CI: -2.3%, 9.9%), and among infants 3-11 months old (16.9%, 95% CI: 8.9%, 25.5%) than infants 0-2 months old (2.7%, 95% CI: -3.5%, 9.2%). The temperature-SIDS association was stronger in climate clusters in the Midwest and surrounding northern regions. Conclusions Temperature increases were associated with an elevated risk of SIDS in the summer, particularly among infants who were Black, 3 months and older, and living in the Midwest and surrounding northern regions.

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A Case‐Crossover Study of Temperature and Infant Mortality in California

Abstract: This study suggests that infants are a vulnerable subgroup to heat exposure. Further studies should be conducted with a sufficient number of cases of infant deaths in other locales.

Cited by 33 publications

References 33 publications

Heat Exposure and Maternal Health in the Face of Climate Change

Heat Exposure and Maternal Health in the Face of Climate Change

Mothers’ Preferences for Safe Sleep in Newborns

Ambient Temperature and Sudden Infant Death Syndrome in the United States

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