Abstract:
ObjectiveTo explore the relationship among the time in range (TIR), fluctuation of blood glucose, glycated hemoglobin (HbA1c) and microangiopathy in type 2 diabetes mellitus(T2DM).
MethodsA total of 142 patients with T2DM were divided into the diabetic microangiopathy group (DMAP group) and the control group (NDMAP group) according to their diabetic retinopathy and diabetic nephropathy.The general clinical data, laboratory data and dynamic blood glucose index were compared between the two groups.Spearman correlation analysis was used to analyze the correlation between DMAP and each index.The influencing factors of DMAP were analyzed by binary logistic regression analysis.The receiver operating characteristic (ROC) curve was used to evaluate the predictive value of HbA1c and TIR for DMAP.
ResultsThere were significant differences in the course of disease, HbA1c, cholesterol (TC), blood glucose standard deviation (SDBG), mean blood glucose (MBG), mean amplitude of glycemic excursions (MAGE) and TIR between the DMAP group and NDMAP group(P < 0.05 to P < 0.01).Spearman correlation analysis showed that DMAP was negatively correlated with TIR (r=-0.424, P < 0.01), and positively correlated with HbA1c, MBG, SDBG and MAGE (r= 0.471, 0.314, 0.371, 0.233, P < 0.01).Binary logistic regression analysis showed that HbA1c was a risk factor for DMAP and TIR was a protective factor for DMAP.ROC curve analysis results showed that the area under the ROC curve for HbA1c and TIR was 0.792 and 0.763, respectively.
ConclusionsHbA1c and TIR are both related to DMAP, which can predict the risk of DMAP.