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June 7, 2026Diabetes

2962-LB: CGM Metrics and Cardiovascular and Mortality Outcomes in Type 2 Diabetes: Data from the GRADE-CGM Substudy

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Why the study?

Do CGM metrics (TIR and GMI) predict serious CVD and mortality beyond HbA1c in patients with type 2 diabetes?

Population

1,363 participants with type 2 diabetes with 10-day continuous glucose monitoring (CGM) in the GRADE study

Comparison

CGM-derived time in range and glucose management… vs HbA1c

Design

Cohort

Follow-up

median 2.3 years

Authors

MTMENGYAO TANGDNDAVID M. NATHANDWDEBORAH WEXLER

Discussion

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Overview

CGM-derived GMI and HbA1c comparably predict cardiovascular and mortality outcomes in type 2 diabetes, but their prognostic values overlap and are not additive.

Structured PICO

Do CGM metrics (TIR and GMI) predict serious CVD and mortality beyond HbA1c in patients with type 2 diabetes?

P
Population
1,363 participants with type 2 diabetes with 10-day continuous glucose monitoring (CGM) in the GRADE study
I
Intervention
CGM-derived time in range (TIR) and glucose management indicator (GMI)
C
Comparator
HbA1c
O
Outcome
Serious CVD (MACE, heart failure hospitalization, angina, revascularization) and all-cause mortalitycomposite

CGM-derived GMI and HbA1c comparably predict cardiovascular and mortality outcomes in type 2 diabetes, but their prognostic values overlap and are not additive.

Cite This Study

TANG et al. (2026) studied this question.

synapsesocial.com/papers/6a250ce97def13d035e1d134https://doi.org/10.2337/db26-2962-lb
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Continuous Glucose Monitoring Metrics Predict All-Cause Mortality in Diabetes: A Real-world Long-term Study2025 · 17 citations
  2. 2Continuous Glucose Monitoring Metrics Predict All-cause Mortality in Diabetes, A Real-world Long-term Study2025
  3. 32184-P: CGM-Derived Measures in Relation to 10-Year CVD Risk in Adults without Diabetes2026
  4. 41929-P: Assessing Glycemic Variability by Continuous Glucose Monitoring: Implications for Prediabetes Subtypes and Potential Cardiovascular Risk2026
  5. 51942-P: Hyperglycemia Metrics from Continuous Glucose Monitoring Are Independently Associated with Platelet Morphology in Adults with Type 1 Diabetes2026