Regional Contribution of Previable Infant Deaths to Infant Mortality Rates in the United States

Objective Lack of standardization of infant mortality rate (IMR) calculation between regions in the United States makes comparisons potentially biased. This study aimed to quantify differences in the contribution of early previable live births ( Study Design Population-based cohort study of all U.S. live births and infant deaths recorded between 2007 and 2014 using Centers for Disease Control and Prevention's (CDC's) WONDER database linked birth/infant death records (births from 17–47 weeks). Proportion of infant deaths attributable to births Results Percentages of infant deaths attributable to birth Conclusion Live births at