Cross-State Differences in the Processes Generating Black-White Disparities in Neonatal Mortality

Area of Science:

• Neonatal mortality research
• Public health disparities
• Sociomedical sciences

Background:

• The U.S. Black neonatal mortality rate is over double the White rate.
• This disparity stems from birth weight distribution and birth weight-specific mortality differences.
• Social context's role in neonatal mortality gaps requires further investigation.

Purpose of the Study:

• To analyze state-level variations in Black-White neonatal mortality disparities.
• To determine the contributions of birth weight distribution versus birth weight-specific mortality.
• To explore the impact of social context on these disparities.

Main Methods:

• Analysis of 1995-2010 state-level neonatal mortality data.
• Decomposition of racial disparities into birth weight distribution and mortality components.
• Examination of disparities across 33 U.S. states.

Main Results:

• Racial disparities in neonatal mortality are primarily driven by differences in birth weight distributions.
• In at least nine states, birth weight-specific mortality significantly contributes to the disparity.
• These mortality differences persist even in advantaged Black populations, particularly for very low birth weight infants.

Conclusions:

• While birth weight distribution is a major factor, unequal medical care at birth is a significant contributor to Black-White neonatal mortality disparities.
• Inequalities in care disproportionately affect very low birth weight neonates.
• Addressing disparities in medical care quality is crucial for reducing racial gaps in neonatal mortality.