Related Experiment Videos
Infant death rates among the poor and nonpoor in Kentucky, 1982 to 1983
Insights
Poor infants in Kentucky faced higher mortality risks, particularly during the postneonatal period. This increased risk was linked to conditions like sudden infant death syndrome and infections, highlighting socioeconomic disparities in infant health.
Area of Science:
- Public Health
- Pediatrics
- Socioeconomic Determinants of Health
Background:
- Infant mortality remains a critical public health concern.
- Socioeconomic status is a known factor influencing health outcomes.
- Understanding disparities in infant mortality requires detailed analysis of population data.
Purpose of the Study:
- To analyze infant mortality rates in Kentucky for 1982-1983.
- To determine if significant differences exist between poor and nonpoor infants.
- To identify factors contributing to observed mortality differences.
Main Methods:
- Analysis of infant mortality data from Kentucky residents (1982-1983).
- Computer matching with Social Insurance Food Stamp and Aid for Families With Dependent Children files to define socioeconomic status (poor vs. nonpoor).
- Crude and adjusted statistical analysis, including relative risk calculation.
Main Results:
- Crude infant mortality rate: 13.7/1,000 births for poor infants vs. 10.8/1,000 births for nonpoor infants.
- Adjusted analysis revealed a significantly greater postneonatal death risk for poor infants (relative risk 2.04, P = .0003).
- Sudden infant death syndrome and infections were primary contributors to higher postneonatal mortality in poor infants.
Conclusions:
- Socioeconomic disadvantage significantly increases postneonatal infant mortality risk in Kentucky.
- Specific causes like SIDS and infections disproportionately affect poor infants postneonatally.
- Findings underscore the need for targeted interventions to address socioeconomic disparities in infant health.
Abstract:
The mortality rates of infants born in Kentucky during 1982 and 1983 were analyzed to determine whether there were differences between poor and nonpoor infants. We used computer matching with the Social Insurance Food Stamp files and with the Aid for Families With Dependent Children files to define poor and nonpoor Kentucky resident families. The crude death rate for poor infants was 13.7/1,000 births, and the nonpoor death rate was 10.8/1,000 births. After adjusting for several important variables, we found that the poor infant was at a significantly greater risk for death than the nonpoor infant but only during the postneonatal period (relative risk 2.04, P = .0003). Some differences by sex and race were noted. Sudden infant death syndrome and infections were largely responsible for the poor infants' higher postneonatal mortality risk.