[Prevalence of thyroid dysfunction in patients with type 2 diabetes mellitus: A systematic review]

Thyroid diseases and type 2 diabetes mellitus are the two most common metabolic disorders that tend to coexist in patients. The objective of the present study is to have the most current evidence in relation to evaluating the prevalence of thyroid dysfunction in type 2 diabetic patients. During the review process, we followed recommendations to improve the publication of PRISMA systematic reviews. The bibliographic search was carried out in Cumulative Index to Nursing and Allied Health Literature (CINAHL), SCOPUS, Scielo, MedLine/PubMed, Cochrane databases and in the Google Scholar search engine, with free and controlled language, using the MeSh search terms: "Patients", "dysfunction", "Thyroid", "Diabetes Mellitus, Type 2". Eight selected articles were analyzed. The articles were selected based on their relevance and published between 2020 and 2024.The most important discussion topics extracted in the analyzed articles refer to the high prevalence of thyroid disorders in patients with DM2, periodic monitoring of thyroid function and adequate management and control of diabetes. The implications of these results for medical practice refer to the need to improve health care through periodic monitoring of thyroid function and adequate management and control of diabetes. Thus, the high prevalence of thyroid dysfunction in patients with DM2 and specifically associated with female sex and age should be considered.