Sustained benefit of continuous glucose monitoring on A1C, glucose profiles, and hypoglycemia in adults with type 1 diabetes.
OBJECTIVE
To evaluate long-term effects of continuous glucose monitoring (CGM) in intensively treated adults with type 1 diabetes.


METHODS
We studied 83 of 86 individuals >or=25 years of age with type 1 diabetes who used CGM as part of a 6-month randomized clinical trial in a subsequent 6-month extension study. RESULTS After 12 months, median CGM use was 6.8 days per week. Mean change in A1C level from baseline to 12 months was -0.4 +/- 0.6% (P < 0.001) in subjects with baseline A1C >or=7.0%. A1C remained stable at 6.4% in those with baseline A1C <7.0%. The incidence rate of severe hypoglycemia was 21.8 and 7.1 events per 100 person-years in the first and last 6 months, respectively. Time per day with glucose levels in the range of 71-180 mg/dl increased significantly (P = 0.02) from baseline to 12 months.


CONCLUSIONS
In intensively treated adults with type 1 diabetes, CGM use and benefit can be sustained for 12 months.
Bode
Bruce
B
Beck
Roy W
RW
Xing
Dongyuan
D
Gilliam
Lisa
L
Hirsch
Irl
I
Kollman
Craig
C
Laffel
Lori
L
Ruedy
Katrina J
KJ
Tamborlane
William V
WV
Weinzimer
Stuart
S
Wolpert
Howard
H
D000328:Adult; D001786:Blood Glucose / Q000032:analysis* / Q000378:metabolism; D001835:Body Weight; D003922:Diabetes Mellitus, Type 1 / Q000097:blood* / Q000523:psychology; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D006943:Hyperglycemia / Q000097:blood / Q000175:diagnosis; D007003:Hypoglycemia / Q000097:blood / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D018670:Monitoring, Ambulatory / Q000379:methods*; D009042:Motivation; D013997:Time Factors
D001786:Blood Glucose; D006442:Glycated Hemoglobin
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