Thyroid dysfunction (hyperthyroidism and hypothyroidism) may increase the risk of hypertension. 1 Hyperthyroidism and hypothyroidism are also common among hypertensive patients, 1 and hypertension guidelines suggest the need for evaluating the thyroid functions of hypertensive patients. 2 From the perspective of preventing hypertension induced by thyroid dysfunction, early intervention should be considered. Thus, it is essential to investigate the association between thyroid function and the indicators of