Impact of SARS-CoV2 on youth onset type 2 diabetes new diagnoses and severity

Sean DeLacey, Jennifer Arzu, Laura Levin, Adesh Ranganna, Anita Swamy, Monica E. Bianco*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Introduction: Initial reports show an increase in youth onset type 2 diabetes during the COVID-19 pandemic. We aim to expand on existing evidence by analyzing trends over a longer period. Objectives: Our study aims to describe change in the amount, severity, and demographics of youth onset type 2 diabetes diagnoses during the COVID-19 pandemic compared to the five years before. Methods: We performed a retrospective cross-sectional review of youth (age ≤ 21) diagnosed with type 2 diabetes during the COVID-19 pandemic (1 May 2020–30 April 2021) and the five years before (1 May 2015–30 April 2020) at a tertiary care center. Children were identified by International Classification of Diseases codes. Charts were reviewed to confirm diagnosis. Chi-square, t tests, and Fisher's exact tests were used for analyses. Results: In the prepandemic era annual diagnoses of type 2 diabetes ranged from 41–69 (mean = 54.2), whereas during the pandemic period 159 children were diagnosed, an increase of 293%. The increase resulted in a higher incidence rate ratio during the pandemic than before, 2.77 versus 1.07 (p =.006). New diagnoses increased most, by 490%, in Non-Hispanic Black patients. The average HbA1c at presentation was higher during the pandemic (9.5% ± 2.6) (79.9 mmol/mol ± 28.2) than before (8.7%±2.1) (72.1 mmol/mol ± 23.1) (p =.003). Of those diagnosed during the pandemic, 59% were tested for COVID-19 and three tested positive. Conclusions: New diagnoses of type 2 diabetes increased during the pandemic, most notably in Non-Hispanic Black youth. There was not a significant correlation found with clinical or biochemical COVID-19 infection in those tested.

Original languageEnglish (US)
Pages (from-to)532-540
Number of pages9
JournalJournal of Diabetes
Issue number8
StatePublished - Aug 2022


  • COVID-19
  • pandemic
  • pediatric
  • type 2 diabetes

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism


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