Details:

Alternative Title:
Am J Prev Med
Personal Author:
Ahrens, Katherine A. ; Rossen, Lauren M. ; Thoma, Marie E. ; Warner, Margaret ; Simon, Alan E.
Ahrens, Katherine A. ; Rossen, Lauren M. ; Thoma, Marie E. ; Warner, Margaret ; Simon, Alan E. Less -
Description:
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.


Subjects:
[+]
Article Birth Order Female Humans Infant Infant Mortality Male Wounds And Injuries
Source:
Am J Prev Med. 53(4):412-420.
Pubmed ID:
28666774
Pubmed Central ID:
PMC5697982
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHS/United States
Place as Subject:
United States
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:8d17a5b7bec6eb13e9579f275340d623d215b03734a91614209310e8fd23975b
Download URL:
https://stacks.cdc.gov/view/cdc/49948/cdc_49948_DS1.pdf
File Type:

Supporting Files

• 	NIHMS903606-supplement-Supplemental_Material.pdf	pdf
  	nihms903606.nxml	xml
  	nihms903606f1.gif	gif
  	nihms903606f1.jpg	jpeg

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