The Associations of Mean Glucose and Time in Range from Continuous Glucose Monitoring with HbA1c in Adults with Type 2 Diabetes
Authors' conclusion
Mean glucose and HbA1c are strongly correlated in type 2 diabetes patients not taking insulin but discordance is evident at the individual level.
Study context
- Population
- Adults with T2D in the Hyperglycemic Profiles in Obstructive Sleep Apnea (HYPNOS) trial, wearing Dexcom G4 and Abbott Libre Pro continuous glucose monitoring (CGM) sensors simultaneously up to 4 weeks
- Participants
- 186 adults
Primary result
As reported in the abstract
- Pearson's correlation of HbA1c with CGM TIR, Abbott
- −0.79
- Pearson's correlation of HbA1c with CGM TIR, Dexcom
- −0.81
- Pearson's correlation of HbA1c with CGM mean glucose, Dexcom
- 0.84
- Pearson's correlation of HbA1c with CGM mean glucose, Abbott
- 0.82
- Differences in CGM mean glucose at any given HbA1c value
- ±20 mg/dL
- Differences in CGM TIR at any given HbA1c value
- ±14%
Further findings
- Mean HbA1c (SD 1.3)
- 7.7%
Original publication
The Associations of Mean Glucose and Time in Range from Continuous Glucose Monitoring with HbA1c in Adults with Type 2 Diabetes. Diabetes Technol Ther. Published 23 November 2022. doi:10.
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