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Prediabetes linked to higher heart attack risk in young adults


Research Highlights:

  • Young adults (ages 18 to 44 years) diagnosed with prediabetes were more likely to be hospitalized for heart attack than those without prediabetes, according to a review of U.S. health records in 2018.
  • Among the young adults who were hospitalized for heart attack, prediabetes did not appear to impact their risks for other major cardiovascular events, such as cardiac arrest or stroke.
  • The researchers noted more aggressive management of prediabetes may help reduce the risk of heart attacks in young adults.

Embargoed until 7:06 a.m. CT/8:06 a.m. ET, Saturday, May 14, 2022

(NewMediaWire) – May 14, 2022 – RESTON, Va. – Young adults with higher than normal blood sugar levels that signal prediabetes were more likely to be hospitalized for heart attack compared to their peers with normal blood sugar levels, according to in preliminary research to be presented at the American Heart Association’s Quality of Care and Outcomes Research Scientific Sessions 2022. The meeting will be held  Friday and Saturday, May 13-14, 2022, in Reston, Virginia, and features the latest research focused on the quality of cardiovascular medical care and patient outcomes in the treatment and prevention of heart disease and stroke.

Having prediabetes means that one’s blood sugar levels are higher than normal, with fasting blood sugar between 100 to 125 mg/dL, although not high enough to be diagnosed as Type 2 diabetes. Prediabetes is common and increases the risk of developing Type 2 diabetes. According to the National Institutes of Health, about 88 million adults in the U.S., ages 18 years of age or older, have prediabetes, which is more than one-third of U.S. adults. Nearly 29 million adults with prediabetes are ages 18 to 44 years.

“Prediabetes, if left untreated, can significantly impact health and can progress to Type 2 diabetes, which is known to increase a person’s risk for cardiovascular disease,” said study author Akhil Jain, M.D., a resident physician at Mercy Catholic Medical Center in Darby, Pa. “With heart attacks happening increasingly in young adults, our study was focused on defining the risk factors pertinent to this young population, so that future scientific guidelines and health policies may be better able to address cardiovascular disease risks in relation to prediabetes.”

Researchers reviewed patient health records in the National Inpatient Sample, which is the largest publicly available database of hospitalizations in the U.S. Specifically, records from the year 2018 for heart attack-related hospitalizations among young adults, ages 18 to 44 years old, were examined.

The analysis found:

  • Of the more than 7.8 million young adults hospitalized for heart attack in 2018, more than 31,000, or 0.4%, had blood sugar levels correlating to prediabetes.
  • Among those with prediabetes, the incidence of heart attack was 2.15% compared to 0.3% in young adults with normal blood sugar levels.
  • Adults with prediabetes were more likely than their peers without prediabetes to have high cholesterol (68.1% vs. 47.3%, respectively) and obesity (48.9% vs. 25.7%, respectively).
  • Adults with prediabetes who were hospitalized for heart attack were more likely to be men of Black, Hispanic or Asian/Pacific Islander race or ethnicity.
  • Adults with prediabetes who were hospitalized for heart attack were more likely to have higher household incomes, to be hospitalized in urban teaching hospitals or to be hospitalized in the Midwest and West regions of the U.S., compared to adults with heart attacks who did not have prediabetes.

“After taking into account various influencing and modifying factors, we found that young adults with prediabetes had 1.7 times higher chances of being hospitalized for a heart attack compared to their peers without prediabetes,” Jain said. “Despite having higher chances of having a heart attack, the young adults with prediabetes did not have higher incidences of other major adverse cardiovascular events, such as cardiac arrest or stroke.”

While prediabetes is a precursor to Type 2 diabetes and other serious health complications, it can be reversed. Many of the steps taken to prevent prediabetes are the same steps to prevent heart disease.

“When blood sugar levels meet the criteria for prediabetes, this is a wake-up call to take action. It’s important for people with prediabetes to know lifestyle changes are key to improving their glucose levels and overall health, and possibly reversing prediabetes and preventing Type 2 diabetes,” said Eduardo Sanchez, M.D., M.P.H., FAHA, FAAFP, the American Heart Association’s chief medical officer for prevention and the clinical lead for the Association’s Know Diabetes by Heart™ initiative. “Eating a healthy diet, being physically active and losing weight, if needed, are all meaningful ways to reverse a prediabetes diagnosis. For smokers, participation in a program to stop smoking is also extremely important. Other lifestyle and behavior changes, like reducing stress, may seem small, yet they can have a large impact on many different areas of life and can make a difference, as well.”

In-depth research on heart attacks in young adults with prediabetes is lacking and more needs to be done, according to Jain.

“Our study should be considered as a foundation for future research to clearly establish heart disease burden in young adults with prediabetes, given the prevalence of prediabetes of nearly 1/3 of adults in the U.S. It is essential to raise awareness among young adults about the importance of routine health check-ups including screening for prediabetes and to take steps to prevent or delay the development of Type 2 diabetes and associated cardiovascular events such as a heart attack,” he said.

Co-authors are Rupak Desai, M.B.B.S.; Fariah Asha Haque, M.B.B.S.; Advait Vasavada, M.B.B.S.; Manisha Jain, M.B.B.S.; Rohan Desai, M.D.; Viralkumar Patel, M.D.; Saima Shawl, M.B.B.S.; Sailaja Sanikommu, M.B.B.S.; Samuel Edusa, M.D.; Navya Sadum, M.B.B.S.; and Thomas Alukal, M.D. Authors’ disclosures are listed in the abstract.

The authors reported no outside funding for this study.

NOTE: Presentation time for this oral abstract is 8:06 a.m., Saturday, May 14, 2022.

Statements and conclusions of studies 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. Abstracts presented at the Association’s scientific meetings are not peer-reviewed, rather, they are curated by independent review panels and are considered based on the potential to add to the diversity of scientific issues and views discussed at the meeting. The findings are considered preliminary until published as a full manuscript in a peer-reviewed scientific journal.

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 and the Association’s overall financial information are available here.

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About the American Heart Association

The American Heart Association is a relentless force for a world of longer, healthier lives. We are dedicated to ensuring equitable health in all communities. Through collaboration with numerous organizations, and powered by millions of volunteers, we fund innovative research, advocate for the public’s health and share lifesaving resources. The Dallas-based organization has been a leading source of health information for nearly a century. Connect with us on heart.orgFacebookTwitter or by calling 1-800-AHA-USA1.  

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AHA Communications & Media Relations in Dallas: 214-706-1173; ahacommunications@heart.org

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