Serum ferritin and glycemic control (HbA1c) in type 2 diabetes mellitus: A cross-sectional study

Background: Insulin resistance and increasing β-cell dysfunction are hallmarks of type 2 diabetes mellitus, a chronic metabolic disease. There is growing evidence that the onset and course of type 2 diabetes may be influenced by iron metabolism, specifically serum ferritin levels. Measuring serum ferritin and iron levels in T2DM patients compared to non-diabetic controls and examining the relationship between these levels and glycemic control (HbA1c) were the goals of this study. Methods: At Al-Sader City Hospital in Iraq, 100 participants 50 T2DM patients and 50 controls took part in a cross-sectional study from March to July 2025. Samples of venous blood were drawn during a fast. Serum ferritin and iron levels were assessed using standard laboratory methods, and HbA1c was determined using EDTA samples. The data was examined using Pearson's correlation and Student's t-test; p