Objectives: We identified potential determinants and cause-specific sources of excess infant mortality among Native Hawaiians.
Methods: We compared infant mortality rates among Native Hawaiians and Whites by using data from the 2002 to 2009 Hawai'i State Linked Birth/Infant Death Cohort File. We evaluated the components of excess infant mortality by age and underlying cause of death as well as maternal sociodemographic, behavioral, and chronic condition disparities.
Results: The Native Hawaiian infant mortality rate was more than twice that for Whites (7.9 vs 3.5/1000 live births). Excess Native Hawaiian infant mortality was equally apportioned to neonatal and postneonatal deaths. Preterm-related causes of death accounted for 43.9% of the infant mortality disparity, followed by sudden unexpected infant death (21.6%) and injury (5.6%). In multivariable models, maternal educational inequality accounted for the largest portion of the neonatal mortality disparity (20.9%); younger maternal age (12.2%) and smoking (9.5%) were the only significant contributors to the postneonatal mortality disparity.
Conclusions: Addressing educational inequalities, promoting safe sleep practices, and reducing smoking among Native Hawaiian mothers would help to eliminate excess infant mortality.