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Related Experiment Video

Updated: Jun 30, 2026

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

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Published on: December 5, 2015

Maternal mortality and related concepts.

Donna L Hoyert1

  • 1Division of Vital Statistics. U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, Hyattsville, Maryland 20782, USA.

Vital & Health Statistics. Series 3, Analytical and Epidemiological Studies
|April 28, 2007
PubMed
Summary

Maternal deaths in the U.S. increased following the adoption of ICD-10 and a new pregnancy question on death certificates. These changes improve the identification of maternal mortality.

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Area of Science:

  • Public Health
  • Epidemiology
  • Vital Statistics

Background:

  • Maternal mortality is a critical public health indicator.
  • Accurate data collection on maternal deaths is essential for targeted interventions.
  • Changes in data collection methods can impact reported mortality statistics.

Purpose of the Study:

  • To present data on U.S. maternal deaths.
  • To summarize long-term data processing issues.
  • To examine recent changes in data collection and their impact on maternal mortality statistics.

Main Methods:

  • Descriptive tabulations of death certificate data.
  • Data compiled nationally via the Vital Statistics Cooperative Program (CDC/NCHS).
  • Causes of death classified using the International Classification of Diseases (ICD).

Main Results:

  • Maternal mortality was 12.1 deaths per 100,000 live births in 2003.
  • Implementation of ICD-10 in 1999 increased identified maternal deaths by 13%.
  • A separate pregnancy question on the death certificate (2002-2003) further increased reported maternal deaths, improving identification.

Conclusions:

  • Maternal deaths increased with ICD-10 adoption and the addition of a pregnancy status question.
  • These data collection changes enhance the identification of maternal deaths.
  • Improved identification facilitates better understanding and potential reduction of maternal mortality.