Related Experiment Video
Updated: Dec 1, 2025

A High-Throughput Multiplexed Screening for Type 1 Diabetes, Celiac Diseases, and COVID-19
Published on: July 5, 2022
Impact of COVID-19 Lockdown on Glycemic Control in Adults with Type 1 Diabetes Mellitus
Begoña Pla1, Alfonso Arranz1, Carolina Knott1
1Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Princesa, Universidad Autónoma de Madrid, Madrid, Spain.
Aim:
To examine the impact of the lockdown caused by the COVID-19 pandemic on both the glycemic control and the daily habits of a group of patients with type 1 diabetes mellitus (T1DM) using flash continuous glucose monitoring devices (flash CGMs).
Methods:
Retrospective analysis based on all the information gathered in virtual consultations from a cohort of 50 adult patients with T1DM with follow-up at our site. We compared their CGM metrics during lockdown with their own previous data before the pandemic occurred, as well as the potential psychological and therapeutic changes.
Results:
We observed a reduction of average glucose values: 160.26 ± 22.55 mg/dL vs 150 ± 20.96 mg/dL, P = .0009; estimated glycosylated hemoglobin: 7.21 ± 0.78% vs 6.83 ± 0.71%, P = .0005; glucose management indicator 7.15 ± 0.57% vs 6.88 ± 0.49%; P = .0003, and glycemic variability: 40.74 ± 6.66 vs 36.43 ± 6.09 P < .0001. Time in range showed an improvement: 57.46 ± 11.85% vs a 65.76 ± 12.09%, P < .0001, without an increase in percentage of time in hypoglycemia.
Conclusions:
COVID-19 lockdown was associated with an improvement in glycemic control in patients with T1DM using CGMs.
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