Patients with diabetes type 1 and thyroid autoimmunity have low prevalence of microangiopathic complications.

The prevalence of thyroid dysfunction in T1DM is higher than in general population [1–3]. Unrecognized thyroid dysfunction may impair metabolic control of diabetes [2, 4, 5]. Substantial proportion of patients with T1DM develop microangiopathic complications [6]. The significance of the coexisting comorbidity of AITD and T1DM in assessment of the risk of development of diabetic microangiopathy is unknown. The aim of the present study was to determine the association between anti-thyroid antibody positivity and the presence of microangiopathy in adults with T1DM without prior evidence of the thyroid disease.