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. 2020 Dec;38(5):429–438. doi: 10.2337/cd20-0043

TABLE 5.

Recommended Clinical Targets for CGM Parameters and Potential Interventions (31)

Metric Target for Most People With Diabetes Target for Older and Higher-Risk Individuals Actions If Out of Target
CGM usage 14 of the past 14 days; active 70% of the time 14 of the past 14 days; active 70% of the time Explore patient barriers to CGM use
Average glucose GMI <7% GMI <8% Review glucose range bar graph
Glucose variability %CV ≤36% %CV ≤36% Review glucose range bar graph
Glucose ranges TIR (70–180 mg/dL) >70% or 17 hours/day TIR (70–180 mg/dL) >50% or 12 hours/day Is there hyperglycemia or hypoglycemia? Address hypoglycemia first.
TBR (<70 mg/dL) <4% or 1 hours/day; TBR (<54 mg/dL) <1% or 15 minutes/day TBR (<70 mg/dL) <1% or 15 minutes/day Identify and adjust contributing medications such as sulfonylureas, basal insulin, and bolus insulin. Explore self-management issues such as exercise, missed meals, and insulin dosing.
TAR (>180 mg/dL) <25% or 6 hours/day; TAR (>250 mg/dL) <5% or 1 hour/day TAR (>250 mg/dL) <10% or 2.5 hours/day Is the hyperglycemia fasting or post-meal? Consider medication adjustments. Explore self-management issues such as food choices and insulin dosing.

TAR, time above range; TBR, time below range.