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Leading causes of infant deaths in the District of Columbia
F Ahmed1, O Shisana, F Saadatmand
1Institute for Urban Affairs and Research, Howard University, Washington, DC 20008.
Insights
Preventable infant deaths, particularly those unrelated to prematurity, significantly impact the Infant Mortality Rate (IMR) in Washington D.C. Addressing these could drastically reduce infant mortality.
Area of Science:
- Public Health
- Neonatalogy
- Epidemiology
Background:
- Infant mortality remains a critical public health concern, with varying causes and preventability across demographics.
- The District of Columbia (D.C.) experienced a high Infant Mortality Rate (IMR) in 1988, necessitating an in-depth analysis of causes.
Purpose of the Study:
- To analyze the causes of infant deaths in D.C. using 1988 linked vital records.
- To evaluate the impact of a new cause-of-death classification on understanding infant mortality.
- To identify preventable infant deaths and propose strategies for reducing the IMR.
Main Methods:
- Analysis of linked vital records from 1988 for the District of Columbia.
- Application of a new cause-of-death classification system.
- Comparison of mortality data with national statistics and demographic subgroups (race).
Main Results:
- A new classification attributed 57% of deaths to "prematurity and related conditions," compared to 31% under ICD-9 (including respiratory distress syndrome - RDS).
- Two-thirds of infant deaths were deemed "preventable," predominantly in infants weighing under 1500g.
- Black infants had a higher proportion of preventable deaths (71% vs. 40% for non-blacks), with 15% of these unrelated to prematurity.
Conclusions:
- Preventable deaths, especially those not linked to prematurity and disproportionately affecting Black infants, are key targets for IMR reduction in D.C.
- Reducing preventable deaths could lower the D.C. IMR from 23.2 to 7.7.
- Higher RDS mortality in D.C. compared to national Black averages suggests a significant opportunity for intervention, though detailed case reviews are essential for effective strategies.
Abstract:
Causes of infant deaths were analyzed from the linked vital records of 1988 for the District of Columbia. According to a new cause-of-death classification, 57% of the deaths were attributed to "prematurity and related conditions," as compared with only 31% due to "disorders relating to short gestation and unspecified low birthweight" and respiratory distress syndrome (RDS) in the three-digit ICD-9 classification. Two thirds of infant deaths were "preventable." However, 92% of these occurred to infants weighing less than 1500 g. Not only was a greater proportion of black deaths (71%) preventable as compared to nonblacks (40%), but also 15% of the preventable deaths among blacks were due to causes unrelated to prematurity. The Infant Mortality Rate (IMR) in the District of Columbia would be reduced from 23.2 to 7.7 if all preventable deaths were prevented, to 20.9 if only the preventable deaths not related to prematurity were prevented, and to 15.2 if the percentage of "preventable" deaths among blacks was brought down to the level of nonblacks. Mortality from RDS was substantially higher in the District of Columbia compared with blacks nationally and appeared to offer the best opportunity for reduction. However, detailed examination of circumstances surrounding each infant death would be necessary to inform the strategies for the reduction in IMR.