African American women experience higher risk of pregnancy-related stroke, death

(Press-News.org) DALLAS, March 11, 2021 -- African American women have a significantly increased risk of stroke and death during pregnancy and childbirth or in the period right after birth, compared to the risk of stroke among white women, according to preliminary research to be presented at the American Stroke Association's International Stroke Conference 2021. The virtual meeting is March 17-19, 2021 and is a world premier meeting for researchers and clinicians dedicated to the science of stroke and brain health.

"Each year, thousands of American women have a stroke or die from a stroke during pregnancy. The risk of stroke is also high following childbirth," said lead study author Mohamed M. Gad, M.D., a resident physician in the department of internal medicine at the Cleveland Clinic in Cleveland, Ohio. "Even so, we lack data on the racial disparities in cardiovascular disease and stroke outcomes for women during and post-pregnancy in the U.S."

Using the Nationwide Inpatient Sample, a hospital database across the U.S., researchers analyzed data on nearly 40 million pregnant and post-partum women hospitalized during pregnancy regardless of cause between 2002 and 2017. Nearly 22% of the women included were African American.

Researchers evaluated stroke outcomes among the pregnant women and found:

While pregnancy-related stroke was very rare, occurring in just 0.03% of the overall study population, 41% of the women who experienced a stroke during pregnancy were African American. The highest number of in-hospital deaths for women with pregnancy-associated stroke occurred among African American women, 7.8% versus 5% for white women. Compared with white women, African American women with pregnancy-associated stroke faced nearly two times the risk of dying from stroke, and the increased risk of death was consistent across age groups. There was little change in these results after accounting for multiple risk factors. When comparing pregnancy-associated stroke outcomes by income levels, African American women in the lowest income group were 1.91 times more likely to die than white women in the same income group. In the highest income group, African American women were 2.38 times more likely to die compared to their white counterparts.

"We found that serious disparities exist despite adjusting for socioeconomic variables. This means that there is no single socioeconomic factor such as income or access to health care that puts a woman more at-risk. Those factors can contribute, yet they do not explain the whole story," Gad said. "We need to understand and address other potential causes of pregnancy-associated stroke and death. If addressed, we can lower the overall burden of disease in the U.S."

Gad said the study provides evidence that can help improve understanding and guide interventions that could help minimize these racial gaps.

INFORMATION:

Study co-authors are Jasmin Abdeldayem, M.D.; Omar M. Abdelfattah, M.D.; Anas M. Saad, M.D.; Ahmed M. Mahmoud, M.D.; and Islam Y. Elgendy, M.D. The authors' disclosures are listed in the abstract. The study authors report no funding.

Additional Resources:

Multimedia is available on the right column of release link https://newsroom.heart.org/news/african-american-women-experience-higher-risk-of-pregnancy-related-stroke-death?preview=dba8212524afb87cd55a3b044b20c844 U.S.-born Black women at higher risk of preeclampsia than Black immigrants
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How to have a heart-healthy pregnancy before you even conceive For more news at ASA International Stroke Conference 2021, follow us on Twitter @HeartNews #ISC21.

Statements and conclusions of studies that are presented at the American Heart Association's scientific meetings are solely those of the study authors and do not necessarily reflect the Association's policy or position. The Association makes no representation or guarantee as to their accuracy or reliability. The Association receives funding primarily from individuals; foundations and corporations (including pharmaceutical, device manufacturers and other companies) also make donations and fund specific Association programs and events. The Association has strict policies to prevent these relationships from influencing the science content. Revenues from pharmaceutical and biotech companies, device manufacturers and health insurance providers are available here, and the Association's overall financial information is available here.

The American Stroke Association's International Stroke Conference (ISC) is the world's premier meeting dedicated to the science and treatment of cerebrovascular disease. ISC 2021 will be held virtually, March 17-19, 2021. The 3-day conference will feature more than 1,200 compelling presentations in 21 categories that emphasize basic, clinical and translational sciences as they evolve toward a better understanding of stroke pathophysiology with the goal of developing more effective therapies. Engage in the International Stroke Conference on social media via #ISC21.

About the American Stroke Association

The American Stroke Association is devoted to saving people from stroke -- the No. 2 cause of death in the world and a leading cause of serious disability. We team with millions of volunteers to fund innovative research, fight for stronger public health policies and provide lifesaving tools and information to prevent and treat stroke. The Dallas-based association officially launched in 1998 as a division of the American Heart Association. To learn more or to get involved, call 1-888-4STROKE or visit stroke.org. Follow us on Facebook, Twitter.