Investigating the Association Between Hypothyroidism and Microvascular Complications in Type 2 Diabetes Mellitus: A Multifaceted Approach With Clinical Implications

Introduction: Type 2 Diabetes Mellitus is marked by hyperglycemia which is chronic in origin, and affects 90% of diabetes cases globally. Concurrently, hypothyroidism, affecting 6-20% of T2DM patients, poses an additional challenge due to its impact on metabolism. Despite growing evidence, the underlying mechanisms connecting hypothyroidism to diabetic microvascular complications remain unclear, necessitating further investigation. This is a cross-sectional study Methods: which explored the link between hypothyroidism with microvascular complications of Type 2 Diabetes Mellitus in 250 patients. Microvascular complications were identied using standardized criteria. Descriptive statistics summarized patient characteristics. Correlation coefcients assessed thyroid markers and complications association. Odds ratios gauged hypothyroidism's impact on complications. Comparative Results: analysis revealed no signicant differences in age, gender, diabetes duration, or HbA1c levels between hypothyroid and non-hypothyroid groups. However, hypothyroid T2DM patients exhibited signicantly higher prevalences of retinopathy (13.8%), nephropathy (19.04%), and neuropathy (25%) compared to non-hypothyroid counterparts. Analysis of correlation identied positive correlations among TSH levels and retinopathy (r=0.23, pvalue < 0.05) and neuropathy (r=0.31, p value<0.02), while free T4 levels correlated negatively with nephropathy (r=-0.19, p-value <0.05). Conclusion: The study contributes valuable insights into the potential correlation between hypothyroidism and diabetic microvascular complications in T2DM patients. Further investigations are warranted to elucidate underlying pathways and establish causation.