Résumé
Diabetes mellitus and thyroid disorders are the most common endocrine disorders worldwide. Various studies have found that diabetes and thyroid disorders mutually influence each other and both disorders tend to coexist. Objective: To study the prevalence of different forms of thyroid dysfunctions, their risk factors and clinical implications in cases of type 2 diabetes mellitus. Methods: The study was conducted on 300 patients of Type 2 diabetes mellitus. All the patients were evaluated for thyroid dysfunction by testing thyroid profile (T3, T4 and TSH). The correlation of prevalence of thyroid disorder with gender distribution, age distribution, HbA1C, duration of diabetes, hypertension, BMI, microvascular complication and dyslipidaemia was done. The observations and interpretations were recorded and results obtained were statistically analysed. Results: There was a high prevalence (20%) of thyroid disorders in patients of type 2 diabetes mellitus. Most common was subclinical hypothyroidism (11.66%) which was further found to be more in females, in middle to elderly patients, less than 5 years duration and patients with normal BMI. Conclusion: Screening for thyroid disorders should be done in all diabetic patients. Treatment of thyroid disorder in diabetics may be beneficial for their glycemic control and prevention of progression of microvascular complication.