Systematic Review of Continuous Glucose Monitor Accuracy in the Hypoglycemia Range for Non-Critical Care Ward Hospitalized People Living With Diabetes
Authors' conclusion
These high mean absolute relative differences suggest that hypoglycemic range CGM results are too inaccurate to guide in-hospital diabetes therapy.
Study context
- Population
- Adult people living with diabetes (PLWD) on non-critical care wards with continuous glucose monitor (CGM) levels below 70 mg/dL (3.9 mmol/L) compared with paired reference blood glucose; databases searched 2012 to August 20259 studies · 465 pairs
- Comparison
- Hypoglycaemia-range CGM vs paired reference blood glucose
- Outcome
- CGM accuracy in the hypoglycemic range (absolute relative difference vs paired reference blood glucose)
Pooled result
As reported in the abstract
Absolute relative difference, hypoglycaemia-range CGM vs reference blood glucose
Mean absolute relative differences ranged
7.6% to 53.3%
Median absolute relative differences ranged
11.7% to 38.5%
Studies with mean absolute relative difference greater than 15%
8
Original publication
Systematic Review of Continuous Glucose Monitor Accuracy in the Hypoglycemia Range for Non-Critical Care Ward Hospitalized People Living With Diabetes. J Diabetes Sci Technol. Published 31 January 2026. doi:10.
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