TUESDAY, Dec. 1, 2020 (American Heart Association News) -- People with atherosclerosis, particularly those who earn a low income and have other socioeconomic disadvantages, are more likely to experience food insecurity than those without the condition, according to new research.
Researchers analyzed several socioeconomic factors from self-reported data for 190,113 U.S. adults. Among the 18,442 (8.2%) adults with atherosclerosis, about 1 in 7 – or 14.6% – reported being food insecure. That was compared with 9.1% among those without atherosclerosis.
The findings also showed food insecurity affects nearly 1 in 2 people with the condition who also are among the most disadvantaged socioeconomic groups.
In 2018, nearly 11% – 14.3 million – U.S. households were food insecure, a term the U.S. Department of Agriculture defines as "limited or uncertain access to adequate food due to lack of money" at least some time during the year.
The new findings were presented last month at the American Heart Association's virtual Scientific Sessions. They are considered preliminary until published in a peer-reviewed journal.
The numbers were significantly higher for people younger than 65, women, Hispanic and non-Hispanic Black people, and those who were divorced, separated, widowed, or had private insurance or no insurance, which were considered to be the "high-risk characteristics" for food insecurity in the study.
Those who listed themselves as "poor/low income" were nearly five times more likely to experience food insecurity. Among people with five or more "high-risk characteristics," 44.1% reported food insecurity and had 23 times higher odds of being food insecure compared to those with one or no characteristics.
"We expected certain populations to have higher burden of food insecurity, but these numbers (44% affected and 23 times more likely) are extremely high. They're very surprising to us," said Dr. Gowtham Grandhi, one of the study's researchers and an internal medicine resident at MedStar Health in Baltimore.
Leaving atherosclerosis unchecked could be dangerous. The fatty plaque may partially or totally block blood flow through large- or medium-sized arteries in the heart and brain, leading to a heart attack or stroke. Treatments for the condition can include medication to prevent clot formation and to control risk factors, surgery, or lifestyle changes such as heart-healthy eating, weight management, exercise and quitting smoking.
The research didn't look into reasons why the difference was so drastic, but lead researcher Shiwani Mahajan said one possibility for higher rates of food insecurity among low-income people is the never-ending cycle of poor health and a lack of money.
"Individuals with cardiovascular disease have even higher health care costs, including medication costs, so they have to choose what to prioritize," said Mahajan, a postdoctoral associate at Yale School of Medicine in New Haven, Connecticut.
She said it's essential for people to be able to afford medications and still be able to eat a balanced diet. Federal nutrition programs, sometimes called "food stamps," are critical for people with food insecurity, the study said. A previous study commissioned by the USDA found the Supplemental Nutrition Assistance Program (SNAP) reduced the likelihood of being food insecure by about 30%.
"The findings are an important reminder that social determinants of health are perhaps just as important, in terms of cardiovascular outcomes, as actual risk factors," said Dr. Arshed Quyyumi, who was not involved in the study.
He called the research "a work in progress" and said future studies are needed that track how many of the participants develop cardiovascular disease.
Quyyumi, a cardiologist and director of the Emory Clinical Cardiovascular Research Institute at Emory University in Atlanta, said addressing the problem in the short-term with food stamps is fairly straightforward.
Finding a long-term solution is trickier, but research shows high-quality education is the key. "It's remarkable to look at the disparity in education among people who end up being food insecure and those who don't," he said.
"The solutions need to start early in life with education intervention, from age 2 onwards. It sounds like an obvious thing to say, but you have to make sure people get a better education so they have better jobs, a higher income and better health."
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By Thor Christensen