Self-Monitoring of Blood Glucose to Assess Dawn Phenomenon in Chinese People with Type 2 Diabetes Mellitus

Abstract EN

Aims.

We investigated whether self-monitoring of blood glucose could be used to assess dawn phenomenon in Chinese people with type 2 diabetes mellitus (T2DM).

Methods.

A total of 306 people with T2DM underwent continuous glucose monitoring and self-monitoring of blood glucose for 72 h.

A linear model was used to fit the optimal linear formula of the magnitude of dawn phenomenon (ΔDawn) and self-monitoring of blood glucose values.

Results.

The prevalence of dawn phenomenon was similar within different oral antidiabetic drug groups (42.5%, 31.5%, and 40.9%, P=0.216).

Multiple variable linear regression showed that prebreakfast, prelunch, and predinner glucose measurements were independently and significantly correlated with ΔDawn.

The linear formula between ΔDawn and blood glucose was as follows: ΔDawn mg/dL=0.557×prebreakfast−0.065×prelunch−0.164×predinner−20.894 mg/dL (adjusted R2=0.302, P=0.000).

Conclusions.

Dawn phenomenon could be partly assessed by blood glucose self-monitoring in Chinese people with T2DM using the abovementioned formula.

The incidence of dawn phenomenon was similar among patients in different oral antidiabetic drug groups.