Investigation of Thyroid Dysfunctions Among Type-1 and Type-2 Diabetes Mellitus Patients

Background and Objective: Thyroid function plays a crucial role in controlling physiological processes. Diabetes and thyroid dysfunctions are two common endocrinological conditions that can be seen in the same patient at the same time. This study aims to investigate thyroid dysfunctions in patients with diabetes mellitus (DM) and to determine the risk factors for thyroid diseases accompanying diabetes. Materials and Methods: The 10297 patients were included in the study. All of the patients were diagnosed with DM. For this retrospective study, medical records of all patients were reviewed and serum T3, T4, TSH and HbA1c results were recorded. Results: All patients were categorized as overt hypothyroidism, overt hyperthyroidism, subclinical hypothyroidism, subclinical hyperthyroidism and euthyroidism according to T4 and TSH results. It was found that thyroid dysfunctions were more common in women and their incidence increased with age. Conclusion: Subclinical thyroid dysfunctions were found to be higher than overt dysfunctions. This is very important for patients with thyroid dysfunction accompanied by diabetes. Screening is recommended to reveal this condition, which is also related to age and gender.