About Maternal Morbidity and Mortality
Research shows that maternal mortality—deaths related to pregnancy or giving birth—in the United States has increased in recent years and that U.S. rates are the highest among high-resource countries. Data also show that African American and American Indian/Alaska Native women are more likely than other U.S. groups to die from pregnancy, childbirth, or postpartum complications.
For each woman who dies, many more women experience short- and long-term health problems related to pregnancy or giving birth, called maternal morbidity.
To understand maternal morbidity and mortality, it’s important to know how different groups measure these issues and what the different terms mean.
Maternal Morbidity
Maternal morbidity describes unexpected short- or long-term health problems that result from being pregnant or giving birth. Some common conditions are cardiovascular disease, infection, bleeding, high blood pressure, and blood clots. These problems require additional medical care, such as hospitalization and long-term rehabilitation, and can affect a woman’s quality of life.
Maternal morbidity can include near-miss cases, meaning women almost die from pregnancy or giving birth but survive. Some women who have near-misses are left with serious lifelong health problems and disabilities. Near-miss cases are sometimes counted separately from general maternal morbidity.
Severe maternal morbidity (SMM)describes life-threatening health problems that are present at delivery. Researchers use 18 indicators, such as kidney failure and fluid in the lungs, to measure SMM.
Maternal Mortality
The short answer to “What is maternal mortality?” is that it is a measure of deaths related to pregnancy and giving birth. The longer answer is that researchers and healthcare providers use different methods to track these deaths and different terms to describe them. Some of these terms include the following:
- Maternal mortality or death refers to deaths that occur during pregnancy or within 6 weeks after the pregnancy ends that are related to pregnancy or its management. The World Health Organization (WHO) uses this description to report worldwide statistics.
- Pregnancy-related deaths refers to deaths during pregnancy and up to 1 year after the pregnancy ends that are related to pregnancy or pregnancy care. The Centers for Disease Control and Prevention (CDC) often uses this measure to report statistics for the United States. It also reports on maternal mortality using the WHO description.
- Pregnancy-associated deaths includes death during or in the year following pregnancy from causes not related to pregnancy, such as vehicle accidents, homicide, and suicide.
More research is needed to better understand the causes of these problems and deaths, the situations that contribute to them, and how to prevent them.
Source: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)