The infant mortality rate (IMR) is a fundamental and widely studied measure of a population's health. This project will examine a key measurement issue for many studies that examine the IMR: how does variation in the classification of live births influence the measured IMR and comparisons of IMR across time periods, group, and place? Specifically, a death cannot contribute to the IMR unless it is first categorized as a live birth, and this classification may involve some ambiguity. Moreover, as medical technology improves survival at the margins of viability, doctors may become more aggressive in the management of marginally viable fetuses, thereby increasingly classifying these cases as live births. Using Vital Statistics (VS) cohort linked birth/infant death files, birth files, and fetal eath files, we will pursue two specific aims, the first assessing the importance of live birth endogeneity to IMR trends and the second to IMR disparities. We propose to use state-of-the-art statistical methods and several direct and indirect methods to examine these issues.

Public Health Relevance

Accounting for the endogeneity of live births, rather than treating classification practices as fixed, will provide a more complete picture of infant mortalit as a measure of public health. This approach will shed new light on how infant health has evolved over time and how it varies across race, ethnicity, and place. It will also provide a framework for interpreting the results of studies which do not account for the potential endogeneity of live births.

Agency
National Institute of Health (NIH)
Type
Small Research Grants (R03)
Project #
5R03HD073565-02
Application #
8701323
Study Section
Developmental Biology Subcommittee (CHHD)
Program Officer
Bures, Regina M
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
2014
Total Cost
Indirect Cost
Name
Michigan State University
Department
Miscellaneous
Type
Schools of Arts and Sciences
DUNS #
City
East Lansing
State
MI
Country
United States
Zip Code
48824