Introduction: Continuous glucose monitoring (CGM) technology has revolutionized the management of type 1 diabetes. However, trends and disparities in CGM use remain poorly characterized in general type 1 diabetes population.

Methods: We conducted a serial cross-sectional analysis of youth and adults with type 1 diabetes using de-identified electronic health record data from the Optum Labs Data Warehouse. Type 1 diabetes status was determined using a validated algorithm. Use of CGM was ascertained by National Drug Codes from prescription order data. We examined trends in CGM use from 2008-2010 to 2020-2022, overall and by age, sex, race/ethnicity, and insurance type.

Results: We included 128,821 individuals with type 1 diabetes (17% under age 18 years; 48% female; 78% non-Hispanic White). From 2008-2010 to 2020-2022, the use of CGM increased from <1% to 47% in youth and 2% to 37% in adults with type 1 diabetes (Fig A1 and A2). Uptake of CGM was similar across age and sex, but substantially lower in racial/ethnic minority patients and those with Medicaid insurance (Fig B1-E2).

Conclusion: Over the past 15 years, the use of CGM has grown significantly among persons with type 1 diabetes in the US. However, racial/ethnic and socioeconomic disparities have widened in both youth and adults. There is an urgent need to expand access to care and diabetes technology to improve care in this population.

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Disclosure

M. Fang: None. Y. Xu: None. J. Coresh: Consultant; SomaLogic, Healthy.io. S. Ballew: None. E. Selvin: None. J. Shin: None.

Funding

K01 DK138273-01

© 2024 by the American Diabetes Association
2024
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