The Relationship Between Age at Diabetes Onset and Clinical Outcomes in Newly Diagnosed Type 2 Diabetes: A Real-World Two-Center Study.

Abstract

This study was developed with the goal of clarifying whether there is any relationship between type 2 diabetes mellitus (T2DM) age of onset and clinical outcomes for patients in National Metabolic Management Centers (MMC). From September 2017 - June 2022, 864 total T2DM patients were recruited in MMC and assigned to those with early-onset and late-onset diabetes (EOD and LOD) based on whether their age at disease onset was ≤ 40 or > 40 years. All patients received standardized management. Baseline and 1-year follow-up data from these two groups of patients were assessed. Associations between onset age and other factors were evaluated with a multivariate linear regression approach, adjusting for appropriate covariates. Outcomes in particular subgroups were also assessed in stratified analyses. Markers of dysregulated glucose metabolism and BMI values were significantly higher among EOD patients as compared to LOD patients. Subjects in both groups exhibited significant improvements in several disease-related parameters on 1-year follow-up after undergoing metabolic management. EOD patients exhibited significantly greater percentage reductions in HbA1c levels (-28.49 (-44.26, -6.45)% vs -13.70 (-30.15,-1.60)%, P =0.017) relative to LOD patients following adjustment for confounders. Significant differences were also detected between these groups when focused on subgroups of patients who were male, exhibited a BMI ≥ 25, an HbA1c ≥ 9, or had a follow-up frequency < 2. Data from a 1-year follow-up time point suggest that a standardized metabolic disease management model can promote effective metabolic control in newly diagnosed T2DM patients, particularly among individuals with EOD.