Study could be key to addressing troubling causes of maternal mortality in US

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Researchers from The University of Texas at San Antonio College for Health, Community and Policy (HCaP) have conducted a study that could be key to decreasing maternal mortality rates in the U.S.

UTSA Associate Professor of Public Health Jeffrey Howard, Associate Professor of Demography Corey Sparks and in demography Samson Olowolaju, in collaboration with Texas State Professor of Psychology Krista Howard and Assistant Professor of Demography Alexis Santos at Penn State, have uncovered two troubling trends: the high rate of maternal deaths in the U.S., and the increase in those deaths by two factors in particular, drug and alcohol poisoning and homicides.

Knowing that there is a larger societal issue around is the first step in finding a solution, according to Howard.

"The first step in solving a problem is to recognize that you have a problem, and the results of this study show for the first time a growing problem facing our country," Howard said. "Hopefully this study and our follow-up study will shine a on the problem, inform social and health policies, and lead to improved prevention and intervention measures to reduce the number of these preventable deaths."

The study highlights UTSA's commitment to forging strong research collaborations and HCaP's mission of conducting research and drafting policy to tackle societal issues and improve human health.

According to a recent report from the Commonwealth Fund, the U.S. has nearly double the number of maternal deaths per 100,000 live births compared to other wealthy, developed nations. Most maternal mortality research has been focused specifically on as the cause of death, a subset of all deaths of pregnant or recently pregnant .

The team examined death certificates obtained from the Center for Disease Control (CDC) from the last five years to determine trends of mortality rates in pregnant and recently pregnant women. Identification is based on the pregnancy checkbox on the death certificates, which indicates if the woman was pregnant at the time of or died within one year of pregnancy.

In total, 9,532 pregnant or recently pregnant women died from 2015-2019. The mortality rate for all causes increased significantly, from 44.4 per 100,000 live births in 2015 to 53.9 per 100,000 in 2019, an increase of 4.4% per year. 

The mortality rate for pregnancy-specific causes did not change significantly, with a slight annual decrease of 1.5% per year from 2015-2019. The pregnancy-specific mortality rate peaked in 2016 at 29.6 per 100,000, then decreased to 27.5 per 100,000 in 2019.

There was, however, a large increase in drug and alcohol related deaths—a 17.4% annual increase over five years.

"This speaks to a much larger problem than issues of pregnancy complications and lack of medical care," Howard said. "This now becomes a bigger social and societal issue involving substance abuse and violence against women that requires a completely different set of solutions."

Howard added, "These deaths of despair also increased at a much faster rate in pregnant women than in women in general. So now this opens up the discussion of why—why is it that so many pregnant and recently-pregnant women are overdosing?"

Another troubling statistic is the increased rate from homicides. From 2015-2019, homicides of pregnant and recently- increased by 13.5% per year. As we come off the heels of Domestic Violence Awareness Month, this statistic is staggering.

"I would hope that our work draws attention to this issue and spurs action related to maternal health, especially in the light of current policy decisions," said Sparks. "This interdisciplinary team was great to work with and all of our strengths were integral to this publication."

The research appeared in the Journal of the American Medical Association.


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More information: Jeffrey T. Howard et al, Trends in Mortality Among Pregnant and Recently Pregnant Women in the US, 2015-2019, JAMA (2021). DOI: 10.1001/jama.2021.13971
Citation: Study could be key to addressing troubling causes of maternal mortality in US (2021, October 26) retrieved 2 December 2021 from https://medicalxpress.com/news/2021-10-key-maternal-mortality.html
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