Early Detection of noctUrnal hypoglyCemiA in TypE 2 Diabetes Using Pulse Rate Variability Measured by a Smartwatch(EDUCATED-Smartwatch)

In patients with type 2 diabetes, it is necessary to identify and manage nocturnal hypoglycemia as early as possible, so as to reduce the damage caused by nocturnal hypoglycemia.We explore whether smartwatches can provide early warning of nocturnal hypoglycemic events in patients with type 2 diabetes by detecting changes in pulse variability.

Inclusion Criteria:1. ≥18 years old 2.continuous glucose monitoring in patients with type 2 diabetes 3.Agreed to research into the group, and be able to sign the informed consentExclusion Criteria:1.Arrhythmia, such as sinus arrest, sick sinus syndrome, atrial fibrillation, atrial flutter 2.Such as acute or chronic infectious diseases,hyperthyroidism and thyroid function did not return to normal pregnancy 3.nursing mothers