Figure 2.

The changes in hemoglobin A1c (HbA1c) in the patients stratified by age‐of‐onset and duration of diabetes mellitus. The patients who had been stratified were matched by the propensity score for the following characteristics: age, age‐of‐onset, duration of diabetes, body mass index, systolic and diastolic blood pressure, post‐prandial plasma glucose, hemoglobin A1c, total cholesterol, lowdensity lipoprotein cholesterol and triglyceride. The changes in HbA1c for patients with an age‐of‐onset of (a) <50 years, (b) ≥50 years and <60 years, and (c) the patients aged more than 60 years are shown. The changes for patients with a duration (d) <5 years and (e) ≥5 years are shown. Statistical analyses were carried out using one‐way analysis of variance (anova), and then by Tukey's honest significant difference.