🍬 Glucose Management Indicator (GMI)
UseWhen to use: CGM reports when mean glucose is available and lab A1C may diverge.
StrataCompare with lab A1C and time-in-range; discordance is common and informative.
LimitsWhen not to use: insufficient CGM wear time. · Pitfall: treating GMI as identical to lab A1C. · Individualize targets.
SourcePublished GMI equation from mean CGM glucose
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
3.31 + 0.02392×mean mg/dL.
When to use
When to use: CGM reports when mean glucose is available and lab A1C may diverge.
How it works
GMI (%) = 3.31 + 0.02392 × mean glucose (mg/dL).
Key points
- 3.31 + 0.02392×mean mg/dL.
- CGM A1C-like estimate.
- Next: TIR / hypoglycemia.
References
- Published GMI equation from mean CGM glucose
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Mean glucose units | mg/dL |
|---|---|
| Mean glucose (CGM) | 154 mg/dL or mmol/L |
→GMI7.0%
- Mean glucose used：154 mg/dL
- Cue：<7% — nearer common target band (individualize)
| Mean glucose units | mmol/L |
|---|---|
| Mean glucose (CGM) | 154 mg/dL or mmol/L |
→GMI69.7%
- Mean glucose used：2775 mg/dL
- Cue：>=8% — higher GMI band
Verification & sources · governance
FAQ
Frequently asked questions
- Does Glucose Management Indicator (GMI) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Glucose Management Indicator (GMI) calculated in practice? Can you show a worked example?
- Inputs: Mean glucose units mg/dL, Mean glucose (CGM) 154 mg/dL or mmol/L → Result: GMI 7.0 %（Mean glucose used: 154 mg/dL, Cue: <7% — nearer common target band (individualize)） Inputs: Mean glucose units mmol/L, Mean glucose (CGM) 154 mg/dL or mmol/L → Result: GMI 69.7 %（Mean glucose used: 2775 mg/dL, Cue: >=8% — higher GMI band）