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Characteristics and Geographic Variation in Sudden Unexpected Infant Deaths in the District of Columbia
Sarah C Isbey, Mary Beth Howard1, Eiman Abdulrahman
1Division of Pediatric Emergency Medicine, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD.
Insights
Sudden unexpected infant deaths disproportionately affect African American infants in the District of Columbia, often occurring during bed-sharing in socially vulnerable areas. Understanding these patterns is crucial for targeted prevention strategies.
Area of Science:
- Pediatrics
- Public Health
- Epidemiology
Background:
- Sleep-related infant death is a significant contributor to infant mortality in the US.
- Infant mortality rates in Washington D.C. exhibit considerable regional disparities.
Purpose of the Study:
- To investigate patient demographics and risk factors associated with sudden unexpected infant deaths (SUID).
- To analyze geographic patterns of infant deaths and their correlation with social vulnerability.
Main Methods:
- Retrospective cohort study of infants under 1 year presenting with cardiac arrest at two pediatric emergency departments (EDs) from 2010-2020.
- Analysis of patient characteristics, causes of death, sleep circumstances, and geographic distribution in relation to the Social Vulnerability Index.
Main Results:
- Eighty-one infant deaths were analyzed, with a median age of 75 days.
- Deceased infants were predominantly African American (89%), had Medicaid (63%), were born at term (66%), and had no comorbidities (60%).
- Undetermined (32%) and asphyxia (31%) were the most common causes of death, with bed-sharing (63%) frequently implicated, even when safe sleep surfaces were available. Deaths clustered in high social vulnerability areas.
Conclusions:
- Sudden unexpected infant deaths in D.C. are concentrated in socially vulnerable neighborhoods.
- Bed-sharing, even with available safe sleep surfaces, is a prevalent risk factor.
- Addressing geographic disparities and social vulnerability is essential for effective SUID prevention.
Abstract:
Sleep-related infant death is a major cause of infant mortality in the United States. In the District of Columbia, infant mortality varies widely among regions (2 to 14 per 1000 live births). The study objectives were to analyze the patient characteristics and related variables to sudden unexpected infant deaths at 2 pediatric emergency department (ED) sites and the geographic patterns of infant deaths and their relationship to social vulnerability. This retrospective cohort study examined infants under 1 year of age presenting with cardiac arrest at 2 ED sites from 2010 to 2020. Analysis showed 81 deaths with a median population age of 75 days (SD, 46 days). The most frequent demographics of deceased patients were African American Black (89%) with Medicaid insurance (63%), born at term gestation (66%), and without comorbidity (60%). The cause of death was most frequently undetermined (32%) and asphyxia (31%). Most cases involved bed-sharing (63%), despite more than half of those cases having a known safe sleep surface available. Infant death location showed that most deaths occurred in areas with the highest social vulnerability index, including near a community ED location. Understanding the etiologies of this geographic variability may enhance sleep-related infant death prevention strategies.
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