News Release

Health disparities in type 1 diabetes and COVID-19 infection with Dr. Kathryn Sumpter

Black patients with Type 1 diabetes and COVID-19 are almost four times as likely to present with diabetic ketoacidosis compared to white patients

Peer-Reviewed Publication

Le Bonheur Children's Hospital

MEMPHIS, Tenn. - Non-Hispanic black patients with Type 1 diabetes and COVID-19 were almost four times as likely to present to the hospital with diabetic ketoacidosis (DKA) compared to non-Hispanic whites, according to an article published in The Journal of Clinical Endocrinology & Metabolism by Le Bonheur Pediatric Endocrinologist Kathryn Sumpter, MD.

The study examined 180 patients with Type 1 diabetes and laboratory-confirmed COVID-19 from 52 clinical sites, including Le Bonheur Children's. The objective of the study was to evaluate instances of DKA, a serious complication of Type 1 diabetes, in patients with Type 1 diabetes and COVID-19 and determine if minorities had increased risk when controlled for sex, age, insurance and last hemoglobin A1c (HbA1c) level.

"We know that Type 2 diabetes is a risk factor for worse COVID-19 outcomes, but less is known about Type 1 diabetes and COVID," said Sumpter. "This study allowed us to examine the intersection of Type 1 diabetes and COVID while also determining the racial inequities in DKA for these patients."

Previous studies have shown that COVID-19 disproportionately affects racial and ethnic minority groups with higher rates of infection and death. The same minority groups with Type 1 diabetes have also been shown to have increased risk of DKA and associated mortality. Because of these existing risk factors, it is critical to understand how COVID-19 and Type 1 diabetes interact and affect outcomes. The results of this study show that non-Hispanic black patients with COVID-19 and Type 1 diabetes have an additional risk of DKA beyond the risk of having diabetes or being of minority status.

The results of the study show that non-Hispanic blacks were more likely to present with DKA and COVID-19 (55%) compared with non-Hispanic whites (13%). Hispanics had almost two times greater odds of presenting with DKA compared to non-Hispanic whites, which researchers found to not be statistically significant.

"A combination of factors lead to higher rates of DKA among minority Type 1 diabetes patients with COVID-19 that relate to social and structural risks," said Sumpter. "Social determinants of health, including income level, education, racial discrimination and inadequate health care access, impact these populations with devastating complications for Type 1 diabetes and COVID-19."

According to the study, intervention in these areas is essential to prevent these poor outcomes that unequally affect minority populations.


About Le Bonheur Children's:

Le Bonheur Children's Hospital in Memphis, Tenn., treats children through community programs, regional clinics and a 255-bed state-of-the-art hospital. Le Bonheur serves as a primary teaching affiliate for the University Tennessee Health Science Center and trains more than 350 pediatricians and specialists each year. Nationally recognized, Le Bonheur is ranked by U.S. News & World Report as a Best Children's Hospital.

For more information, please call (901) 287-6030 or visit Connect with us at, or on Instagram at lebonheurchildrens.

About University of Tennessee Health Science Center:

As Tennessee's only public, statewide, academic health system, the mission of the University of Tennessee Health Science Center is to bring the benefits of the health sciences to the achievement and maintenance of human health through education, research, clinical care, and public service, with a focus on the citizens of Tennessee and the region. The main campus in Memphis includes six colleges: Dentistry, Graduate Health Sciences, Health Professions, Medicine, Nursing and Pharmacy. UTHSC also educates and trains medicine, pharmacy, and/or health professions students, as well as medical residents and fellows, at major sites in Knoxville, Chattanooga and Nashville. For more information, visit Find us on Facebook:, on Twitter: and on Instagram:

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