VSRR Provisional Maternal Death Counts and Rates

This data presents national-level provisional maternal mortality rates based on a current flow of mortality and natality data in the National Vital Statistics System. Provisional rates which are an early estimate of the number of maternal deaths per 100,000 live births, are shown as of the date specified and may not include all deaths and births that occurred during a given time period (see Technical Notes).

A maternal death is the death of a woman while pregnant or within 42 days of termination of pregnancy irrespective of the duration and the site of the pregnancy, from any cause related to or aggravated by the pregnancy or its management, but not from accidental or incidental causes. In this data visualization, maternal deaths are those deaths with an underlying cause of death assigned to International Statistical Classification of Diseases, 10th Revision (ICD-10) code numbers A34, O00–O95, and O98–O99.

The provisional data include reported 12 month-ending provisional maternal mortality rates overall, by age, and by race and Hispanic origin. Provisional maternal mortality rates presented in this data visualization are for “12-month ending periods,” defined as the number of maternal deaths per 100,000 live births occurring in the 12-month period ending in the month indicated. For example, the 12-month ending period in June 2020 would include deaths and births occurring from July 1, 2019, through June 30, 2020. Evaluation of trends over time should compare estimates from year to year (June 2020 and June 2021), rather than month to month, to avoid overlapping time periods. In the visualization and in the accompanying data file, rates based on death counts less than 20 are suppressed in accordance with current NCHS standards of reliability for rates. Death counts between 1-9 in the data file are suppressed in accordance with National Center for Health Statistics (NCHS) confidentiality standards.

Provisional data presented on this page will be updated on a quarterly basis as additional records are received. Previously released estimates are revised to include data and record updates received since the previous release. As a result, the reliability of estimates for a 12-month period ending with a specific month will improve with each quarterly release and estimates for previous time periods may change as new data and updates are received.

本数据集呈现了基于国家层面的实时死亡与出生数据流所计算出的孕产妇死亡率。孕产妇死亡率是指每十万活产中孕产妇死亡数的早期估计值，并显示至指定日期为止的数据，可能不包括特定时期内发生的所有死亡与出生事件（详见技术说明）。孕产妇死亡是指妇女在怀孕期间或终止妊娠后42天内死亡，无论怀孕持续时间与地点，由于与怀孕或其管理相关的任何原因造成的死亡，但非意外或偶发原因导致的死亡。在本数据可视化中，孕产妇死亡是指死亡原因被归为国际疾病分类第10版（ICD-10）代码A34、O00-O95以及O98-O99的死亡案例。该临时数据包括整体、按年龄、以及按种族和西班牙裔起源报告的12个月末临时孕产妇死亡率。本数据可视化中呈现的孕产妇死亡率是指“12个月末期间”的死亡率，定义为在指定月份结束的12个月内发生的每十万活产中的孕产妇死亡数。例如，2020年6月的12个月末期间包括从2019年7月1日至2020年6月30日期间发生的死亡与出生事件。对时间趋势的评价应逐年比较估计值（例如，2020年6月与2021年6月），而非逐月比较，以避免时间重叠。在可视化和随附的数据文件中，根据当前美国国家卫生统计中心（NCHS）对可靠性的标准，基于死亡计数少于20的死亡率被抑制。数据文件中死亡计数为1-9的记录根据国家卫生统计中心（NCHS）的保密标准被抑制。本页上呈现的临时数据将根据收到的额外记录按季度更新。先前发布的估计值将进行修订，以包括自上次发布以来收到的数据和记录更新。因此，以特定月份结束的12个月期间的估计值的可靠性将随着每个季度的发布而提高，而先前时间段的估计值可能会随着新数据和更新的接收而发生变化。