Assessment of HGI (Hemoglobin Glycation Index) Variability Over Time in Patients Living With Diabetes Using Continuous Glucose Monitoring ( GAP OUEST )

Inclusion Criteria:

• Major (adult subject over 18), with no upper age limit

• Enrolled in a social security scheme or beneficiary of such a scheme

• Agreement to participate (informed, written consent)

• Established diabetes (regardless the type of diabetes), known for at least 6 monthsat inclusion

• Regular user of a glucose monitoring system for at least 3 months.

Non inclusion Criteria:

• Known hemoglobinopathy

• Inadequate use of the flash glucose monitoring system with a capture rate of lessthan 70% of interstitial glucose measurements, during the 3 months preceding theinclusion visit.

• Stage 5 renal insufficiency (CKD-EPI less than 15 mL/min/1.73 m2)

• Pregnant or breast-feeding

• Major under guardianship, curatorship or safeguard of justice

• Any situation assessed by the investigator as potentially prejudicial to theparticipant's health as a result of participation in the study

Exclusion criteria:

• Treatment with corticosteroids in the 3 months preceding the visit

• Unusual acute situation (infection, very unusual physical activity, etc.) deemedsignificant by the investigator

• Pregnancy started