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- Title
Prevalence of thyroid dysfunction in patients with diabetes mellitus.
- Authors
Vergara Palma, Cátia Cristina Silva Sousa; Pavesi, Marco; Nogueira, Verônica Guedes; Silva Clemente, Eliete Leão; Motta Pereira Vasconcellos, Maria de Fátima Bevilacqua; Pereira Júnior, Luiz Carlos; Pacheco, Fernanda Faissol; Braga, Tássia Gomide; Bello, Ludmila de Faria; Soares, Juliana Oliveira; Fenizola dos Santos, Stefanie Cathren; Cavalcante Campos, Vinícius Paes Leme; Gomes, Marília Brito
- Abstract
Background Diabetes mellitus (DM) and thyroid dysfunction (TD) are the two most common endocrine disorders in clinical practice. The unrecognized TD may adversely affect the metabolic control and add more risk to an already predisposing scenario for cardiovascular diseases. The objective of this study was to investigate the prevalence of TD in patients with type 1 and type 2 diabetes mellitus (T1DM and T2DM). Methods This is an observational cross-sectional study. Three hundred eighty-six (386) patients with T1DM or T2DM that regularly attended the outpatient clinic of the Diabetes unit, Hospital Universitário Pedro Ernesto, participated in the study. All patients underwent a clinical and laboratory evaluation. Thyroid dysfunction was classified as clinical hypothyroidism (CHypo) if TSH > 4.20 μUI/mL and FT4 < 0.93 ng/dL ; Subclinical hypothyroidism (SC-Hypo) if TSH > 4.20 μUI / ml and FT4 ranged from 0.93 to 1.7 ng/dL ; Subclinical hyperthyroidism (SC-Hyper) if TSH < 0.27 μUI /ml and FT4in the normal range (0.93 and 1.7 ng/dL ) and Clinical hyperthyroidism (C-Hyper) if TSH < 0.27 μUI / ml and FT4 > 1.7 μUI /mL. Autoimmunity were diagnosed when anti-TPO levels were greater than 34 IU / mL. The positive autoimmunity was not considered as a criterion of thyroid dysfunction. Results The prevalence of TD in all diabetic patients was 14,7%.In patients who had not or denied prior TD the frequency of TD was 13%. The most frequently TD was subclinical hypothyroidism, in 13% of patients with T1DM and in 12% of patients with T2DM.The prevalence of anti-TPO antibodies was 10.8%.Forty-four (11.2%) new cases of TD were diagnosed during the clinical evaluation. The forty-nine patients with prior TD, 50% with T1DM and 76% with T2DM were with normal TSH levels. Conclusions We conclude that screening for thyroid disease among patients with diabetes mellitus should be routinely performed considering the prevalence of new cases diagnosed and the possible aggravation the classical risk factors such as hypertension and dyslipidemia, arising from an undiagnosed thyroid dysfunction.
- Subjects
THYROID diseases; DISEASE prevalence; PEOPLE with diabetes; MEDICAL screening; CROSS-sectional method; DISEASE risk factors
- Publication
Diabetology & Metabolic Syndrome, 2013, Vol 5, Issue 1, p1
- ISSN
1758-5996
- Publication type
Article
- DOI
10.1186/1758-5996-5-58