Staying Between the Lines: Why Time in Range Matters

The use of continuous glucose monitoring (CGM) has created new glucose metrics for both people with diabetes and healthcare professionals to incorporate into diabetes management. While A1C is an average, time-in-range (TIR) captures when glucose is in the target range (70 mg/dL-180 mg/dL for most individuals), as well as when glucose is above range and below range, providing critical information for treatment decisions as well as health behavior changes. Time in range discussions can lead to more productive diabetes conversations when incorporating strength-based language principles and can lead to discovery learning.

Diana Isaacs is an Endocrine Clinical Pharmacy Specialist, and the CGM and Remote Monitoring Program Coordinator, at Cleveland Clinic Endocrinology & Metabolism Institute. As a CGM expert she frequently educates people on the benefits of incorporating CGM into practice and the International Consensus Guidelines on time in range (TIR).1

This 36-min presentation will highlight:

  • International Consensus Guidelines for TIR
  • Challenges of A1C when managing diabetes
  • Glycemic variability
  • Association of TIR and diabetes complications
  • Opportunities to help people with diabetes increase TIR
  • Apply TIR and other CGM metrics to two case studies

For more information on this topic please download these helpful resources:

Why Time in Range Matters (PDF)

Metrics Beyond A1C (PDF)

Learn more about The Global Movement for Time in Range and find additional resources at


1 Battelino T et al. Diabetes Care. 2019;42(8):1593-1603

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