Urbanization and differentials in white and nonwhite infant mortality

Area of Science:

• Public Health
• Epidemiology
• Demography

Background:

• Infant mortality rates (IMR) vary significantly by geographic location and race.
• Understanding these disparities is crucial for targeted public health interventions.

Purpose of the Study:

• To analyze infant deaths in the United States from 1962 to 1967.
• To determine the relationship between infant mortality, urbanization, and race.

Main Methods:

• Analysis of infant death data by place of residence (urban vs. rural).
• Comparison of mortality rates across different age groups and racial demographics.

Main Results:

• Infant mortality increases as urbanization decreases, particularly after the first week of life.
• Nonwhite infants experienced a marked disadvantage in mortality across all urbanization levels.
• Rural nonwhite infants faced the greatest disadvantage, with an estimated 11,597 annual excess deaths if white rates applied.

Conclusions:

• Urbanization level and race are significant factors influencing infant mortality.
• Targeted interventions are needed to address racial disparities in infant survival, especially in rural areas.
• Perinatal mortality shows a complex interplay between urbanization and early-life mortality factors.