Lori M. Laffel; Jennifer L. Sherr; Jingwen Liu; Wendy A. Wolf; Jeoffrey Bispham; Katherine S. Chapman; Daniel Finan; Lina Titievsky; Tina Liu; Kaitlin Hagan; Jason Gaglia; Keval Chandarana; Jeremy Pettus; Richard Bergenstal
Lori M. Laffel;
OBJECTIVE

We captured continuous glucose monitoring (CGM) metrics from a large online survey of adults with type 1 diabetes to determine how glycemic outcomes varied by insulin delivery form.

RESEARCH DESIGN AND METHODS

Adults with type 1 diabetes from the T1D Exchange Registry/online communities completed the survey and contributed retrospective CGM data for up to 1 year. Self-reported glycemic outcomes and CGM measures were described overall and by insulin delivery method.

RESULTS

The 926 participants completed the survey and provided CGM data. Mean ± SD age was 41.9 ± 15.7 years, and 50.8% reported using automated insulin delivery (AID). While AID users spent more time in range, 27.9% did not achieve time in range targets, 15.5% reported severe hypoglycemic events (SHEs), and 16.0% had CGM-detected level 2 hypoglycemic events.

CONCLUSIONS

Despite use of diabetes technologies, many individuals are unable to achieve glycemic targets and experience severe hypoglycemia, highlighting the need for novel treatments.

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