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Diabetes Care. 2014 Oct;37(10):2702-9. doi: 10.2337/dc14-0303. Epub 2014 Jul 10.

Real-time continuous glucose monitoring among participants in the T1D Exchange clinic registry.

Author information

1
Madison Clinic for Pediatric Diabetes and University of California San Francisco, San Francisco, CA.
2
Jaeb Center for Health Research, Tampa, FL.
3
Barbara Davis Center for Childhood Diabetes, Aurora, CO.
4
International Diabetes Center Park Nicollet, Minneapolis, MN.
5
Harold Schnitzer Diabetes Health Center at Oregon Health and Science University, Portland, OR.
6
Keck School of Medicine of the University of Southern California, Los Angeles, CA.
7
Atlanta Diabetes Associates, Atlanta, GA.
8
Northwestern University, Chicago, IL.
9
University of Washington, Seattle, WA.
10
Helen DeVos Children's Hospital, Grand Rapids, MI.
11
Jaeb Center for Health Research, Tampa, FL t1dstats@jaeb.org.

Abstract

OBJECTIVE:

To assess the frequency of continuous glucose monitoring (CGM) device use, factors associated with its use, and the relationship of CGM with diabetes outcomes (HbA1c, severe hypoglycemia [SH], and diabetic ketoacidosis [DKA]).

RESEARCH DESIGN AND METHODS:

Survey questions related to CGM device use 1 year after enrollment in the T1D Exchange clinic registry were completed by 17,317 participants. Participants were defined as CGM users if they indicated using real-time CGM during the prior 30 days.

RESULTS:

Nine percent of participants used CGM (6% of children <13 years old, 4% of adolescents 13 to <18 years, 6% of young adults 18 to <26 years, and 21% of adults ≥26 years). CGM use was more likely with higher education, higher household income, private health insurance, longer duration of diabetes, and use of insulin pump (P < 0.01 all factors). CGM use was associated with lower HbA1c in children (8.3% vs. 8.6%, P < 0.001) and adults (7.7% vs. 7.9%, P < 0.001). In adults, more frequent use of CGM (≥6 days/week) was associated with lower mean HbA1c. Only 27% of users downloaded data from their device at least once per month, and ≤15% of users reported downloading their device at least weekly. Among participants who used CGM at baseline, 41% had discontinued within 1 year.

CONCLUSIONS:

CGM use is uncommon but associated with lower HbA1c in some age-groups, especially when used more frequently. Factors associated with discontinuation and infrequent use of retrospective analysis of CGM data should be considered in developing next-generation devices and education on CGM use.

PMID:
25011947
PMCID:
PMC4392936
DOI:
10.2337/dc14-0303
[Indexed for MEDLINE]
Free PMC Article

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