Effects of Changes in Maternal Age Distribution and Maternal Age-specific Infant Mortality Rates on Infant Mortality Trends: United States, 2000-2017.

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  • Author(s): Driscoll AK; Ely DM
  • Source:
    National vital statistics reports : from the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System [Natl Vital Stat Rep] 2020 Jun; Vol. 69 (5), pp. 1-18.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics Country of Publication: United States NLM ID: 9814753 Publication Model: Print Cited Medium: Internet ISSN: 1551-8930 (Electronic) Linking ISSN: 15518922 NLM ISO Abbreviation: Natl Vital Stat Rep Subsets: MEDLINE
    • Publication Information:
      Original Publication: Hyattsville, Md. : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, [1998-
    • Subject Terms:
      Maternal Age*; Infant Mortality/*trends; Adult ; Age Distribution ; Female ; Hispanic or Latino/statistics & numerical data ; Humans ; Infant ; Infant Mortality/ethnology ; Pregnancy ; Racial Groups/statistics & numerical data ; United States/epidemiology ; Vital Statistics ; Young Adult
    • Abstract:
      Objectives-This report assesses the contributions of the changing maternal age distribution and maternal age-specific infant mortality rates on overall and race and Hispanic origin-specific infant mortality rates in the United States from 2000 to 2017. Methods-The analyses used 2000-2017 linked birth and infant death data from the National Vital Statistics System. Age-adjusted infant mortality rates, based on the 2000 U.S. maternal age distribution, were calculated for each year. These rates were compared with crude rates for all births and for specific race and Hispanic-origin groups. Decomposition analysis was used to estimate the proportion of the decline due to changes in maternal age distribution and in age-specific mortality rates. Results-During 2000-2017, the age of women giving birth rose as infant mortality rates declined, although unevenly across maternal age groups. The maternal age-adjusted infant mortality rate in 2017 was 6.13 compared with the crude rate of 5.79, resulting in a 0.34 percentage point difference. Changes in the maternal age distribution accounted for 31.3% of the decline in infant mortality rates for all births and for births to non-Hispanic white women, and for 4.8% of the decline in births to non-Hispanic black women. Declines in age-specific mortality rates accounted for the remainder of the decline for these groups and for all of the decline in births to Hispanic women. Conclusion-Changes in the age distribution of women giving birth accounted for about one-third of the decline in infant mortality rates from 2000 through 2017; declines in maternal age-specific mortality rates accounted for about two-thirds of this decline. These patterns varied by race and Hispanic origin.
      (All material appearing in this report is in the public domain and may be reproduced or copied without permission; citation as to source, however, is appreciated.)
    • Publication Date:
      Date Created: 20200701 Date Completed: 20200727 Latest Revision: 20211204
    • Publication Date:
      20221213
    • Accession Number:
      32600516