In a Hypo-METRICS subanalysis of 58 insulin-treated diabetes participants in Austria, 56% (n=28/50 respondents) reported hypoglycaemic symptoms at glucose readings ≥70 mg/dL “sometimes” or “often,” attributing them partly to fear of hypoglycaemia.

Why It Matters To Your Practice

• Patient-reported hypoglycaemia can occur at glucose readings ≥70 mg/dL, meaning “symptoms” and CGM thresholds may not align with biochemical hypoglycaemia.

• In the broader Hypo-METRICS findings, 60% of sensor-detected hypoglycaemic episodes were asymptomatic—so relying on symptoms alone can miss clinically relevant lows.

• Conversely, relying on CGM data alone can miss the lived experience driving behaviors (e.g., overtreatment, avoidance, alarm fatigue).

Clinical Benefits

• Use symptom-at-≥70 mg/dL reports as a cue to review recent glycaemic patterns (chronic hyperglycaemia, rapid downward trends) rather than dismissing the complaint.

• Individualize CGM alerts and education to match the patient’s physiology and perceptions—especially if they describe “false lows” or treat at higher numbers.

• Stratify follow-up: patients reporting frequent symptoms at ≥70 may benefit from focused coaching on trend arrows, rate-of-fall, and appropriate treatment thresholds.

Managing Risks

• Screen for fear of hypoglycaemia when patients report symptoms at ≥70 mg/dL; fear can drive defensive eating, insulin under-dosing, and higher A1c.

• Assess for “threshold shift” from chronic hyperglycaemia: patients may feel low at near-normal glucose until they re-acclimate.

• Prevent overtreatment: reinforce treating based on symptoms plus CGM trend/confirmation (when appropriate), not a single number—particularly near 70 mg/dL.

The Bottom Line

• Symptoms at glucose readings ≥70 mg/dL are common in this cohort and are often linked to fear, rapid declines, and prior hyperglycaemia.

• Combine CGM data and the patient’s narrative to tailor alarms, counseling, and treatment plans—one data stream alone gives an incomplete picture.