Limitations
The study included patients with A1c measurements made up to 12 months prior to their COVID-19 test, and hence comorbid conditions, medication changes during this period, or other factors may have affected subsequent A1c levels. To address this, the authors also assessed outcomes at 3- and 6-month intervals, which produced results consistent with the 12-month findings.
The researchers did not have A1c values for many of the more than 234,000 people in the entire registry who underwent COVID-19 testing from March 2020-May 2021 at the Cleveland Clinic, omissions that may have biased the study cohort.
This was a single-center study. Some patients may have received care outside of the center, hence records of those episodes could not be included.
Disclosures
The study received no commercial funding. Four authors received consulting and speaker honoraria and research funding from AstraZeneca, Bayer, Boehringer Ingelheim, Corcept Therapeutics, Diasome, Eli Lilly, Merck, Novo Nordisk, and Sanofi. Three authors have intellectual property related to treatment decisionmaking in the context of type 2 diabetes.
This is a summary of a preprint research study “Impacts of COVID-19 on glycemia and risk of diabetic ketoacidosis,” written by researchers at the Cleveland Clinic on medRxiv. The study has not yet been peer reviewed. The full text of the study can be found on medRxiv.org.
A version of this article first appeared on Medscape.com.