Katherine A Ahrens1, Lauren M Rossen2, Marie E Thoma3, Margaret Warner4, Alan E Simon5. 1. Office of Population Affairs, Office of the Assistant Secretary for Health, U.S. DHHS, Rockville, Maryland. Electronic address: kate.ahrens@hhs.gov. 2. National Center for Health Statistics, Centers for Disease Control and Prevention, Division of Vital Statistics, Reproductive Health Statistics Branch, Hyattsville, Maryland. 3. National Center for Health Statistics, Centers for Disease Control and Prevention, Division of Vital Statistics, Reproductive Health Statistics Branch, Hyattsville, Maryland; Department of Family Science, School of Public Health, University of Maryland, College Park, Maryland. 4. National Center for Health Statistics, Centers for Disease Control and Prevention, Division of Vital Statistics, Mortality Statistics Branch, Hyattsville, Maryland. 5. Office on Women's Health, Office of the Assistant Secretary for Health, U.S. DHHS, Washington, District of Columbia.
Abstract
INTRODUCTION: The purpose of this study was to evaluate the risk of death during the first year of life due to injury, such as unintentional injury and homicide, by birth order in the U.S. METHODS: Using national birth cohort-linked birth-infant death data (births, 2000-2010; deaths, 2000-2011), risks of infant mortality due to injury in second-, third-, fourth-, and fifth or later-born singleton infants were compared with first-born singleton infants. Risk ratios were estimated using log-binomial models adjusted for maternal age, marital status, race/ethnicity, and education. The statistical analyses were conducted in 2016. RESULTS: Approximately 40%, 32%, 16%, 7%, and 4% of singleton live births were first, second, third, fourth, and fifth or later born, respectively. From 2000 to 2011, a total of 15,866 infants died as a result of injury (approximately 1,442 deaths per year). Compared with first-born infants (2.9 deaths per 10,000 live births), second or later-born infants were at increased risk of infant mortality due to injury (second, 3.6 deaths; third, 4.2 deaths; fourth, 4.8 deaths; fifth or later, 6.4 deaths). The corresponding adjusted risk ratios were as follows: second, 1.84 (95% CI=1.76, 1.91); third, 2.42 (95% CI=2.30, 2.54); fourth, 2.96 (95% CI=2.77, 3.16); and fifth or later, 4.26 (95% CI=3.96, 4.57). CONCLUSIONS: Singleton infants born second or later were at increased risk of mortality due to injury during their first year of life in the U.S. This study's findings highlight the importance of investigating underlying mechanisms behind this increased risk. Published by Elsevier Inc.
INTRODUCTION: The purpose of this study was to evaluate the risk of death during the first year of life due to injury, such as unintentional injury and homicide, by birth order in the U.S. METHODS: Using national birth cohort-linked birth-infantdeath data (births, 2000-2010; deaths, 2000-2011), risks of infant mortality due to injury in second-, third-, fourth-, and fifth or later-born singleton infants were compared with first-born singleton infants. Risk ratios were estimated using log-binomial models adjusted for maternal age, marital status, race/ethnicity, and education. The statistical analyses were conducted in 2016. RESULTS: Approximately 40%, 32%, 16%, 7%, and 4% of singleton live births were first, second, third, fourth, and fifth or later born, respectively. From 2000 to 2011, a total of 15,866 infants died as a result of injury (approximately 1,442 deaths per year). Compared with first-born infants (2.9 deaths per 10,000 live births), second or later-born infants were at increased risk of infant mortality due to injury (second, 3.6 deaths; third, 4.2 deaths; fourth, 4.8 deaths; fifth or later, 6.4 deaths). The corresponding adjusted risk ratios were as follows: second, 1.84 (95% CI=1.76, 1.91); third, 2.42 (95% CI=2.30, 2.54); fourth, 2.96 (95% CI=2.77, 3.16); and fifth or later, 4.26 (95% CI=3.96, 4.57). CONCLUSIONS: Singleton infants born second or later were at increased risk of mortality due to injury during their first year of life in the U.S. This study's findings highlight the importance of investigating underlying mechanisms behind this increased risk. Published by Elsevier Inc.
Authors: Katherine A Ahrens; Marie E Thoma; Lauren M Rossen; Margaret Warner; Alan E Simon Journal: Am J Epidemiol Date: 2017-03-01 Impact factor: 4.897
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Authors: Marie E Thoma; Lauren M Rossen; Dane A De Silva; Margaret Warner; Alan E Simon; Susan Moskosky; Katherine A Ahrens Journal: Paediatr Perinat Epidemiol Date: 2019-09-12 Impact factor: 3.980
Authors: Jennifer A Hutcheon; Susan Moskosky; Cande V Ananth; Olga Basso; Peter A Briss; Cynthia D Ferré; Brittni N Frederiksen; Sam Harper; Sonia Hernández-Díaz; Ashley H Hirai; Russell S Kirby; Mark A Klebanoff; Laura Lindberg; Sunni L Mumford; Heidi D Nelson; Robert W Platt; Lauren M Rossen; Alison M Stuebe; Marie E Thoma; Catherine J Vladutiu; Katherine A Ahrens Journal: Paediatr Perinat Epidemiol Date: 2018-10-12 Impact factor: 3.980