U.S. maternal deaths keep rising. Here's who is most at risk

Maternal death rates have been consistently highest among Black women. But they are also rising among other racial groups. (JGI/Tom Grill/Getty Images/Tetra images RF)

The number of people dying in the U.S. from pregnancy-related causes has more than doubled in the last 20 years, according to a new study, published in JAMA, the Journal of the American Medical Association.

And while the study found mortality rates remain "unacceptably high among all racial and ethnic groups across the U.S.," the worst outcomes were among Black women, Native American and Alaska Native people.