Abstract

Diabetes is associated with a high economic burden in China; therefore, strategies to prevent diabetes, improve glycaemic control, delay disease-related complications and maintain quality of life are essential. This study was conducted to evaluate trends in treatment patterns and glycaemic control in people with type 2 diabetes (T2D) in real-world clinical practice in Tianjin, China. This retrospective, cross-sectional, multicentre study analysed data from adults with T2D living in Tianjin, China between 2015 and 2019, based on information obtained from a regional electronic medical record database. Temporal trends in treatment patterns and glycaemic control were assessed using linear regression (continuous variables), and Cochran-Armitage (two categories) or Cochran-Mantel-Haenszel (≥ 3 categories) tests. Between 2015 and 2019, data from 312,203 individuals treated at 75 hospitals were included. Over this period, there was an upward trend in the prevalence of hypertension, hyperlipidaemia, obesity, cardiovascular disease, stroke and retinopathy each year (all P < 0.001). The use of metformin or dipeptidyl peptidase-4 inhibitors increased, while thiazolidinedione, alpha-glucosidase inhibitor and glinide use decreased; the use of basal insulin (BI), glucagon-like peptide-1 receptor agonists (GLP-1 RAs), GLP-1 RAs + BI, bolus insulin and BI + bolus insulin increased, whereas the use of premixed insulin showed a downward trend (all P < 0.001). From 2015 to 2019, an increased proportion of individuals achieved glycated haemoglobin (HbA1c) < 7% (< 53 mmol/mol; 28.1-33.7%), fasting plasma glucose (FPG) < 7 mmol/l (21.7-26.9%) and postprandial glucose (PPG) < 10 mmol/l (22.0-48.2%; all P < 0.001). There was no change in the proportion of individuals with an FPG ≥ 7 mmol/l and a PPG ≥ 10 mmol/l, while the prevalence of residual hyperglycaemia increased (P < 0.001). Glycaemic control improved between 2015 and 2019 in people with T2D in Tianjin, China; however, there is an unmet need for more effective glycaemic control.

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