Main outcome measures included tests of thyroid function (serum free thyroxine [T4] and thyrotropin [TSH]) and the presence of AF on resting electrocardiogram.

• 主要终点指标包括：甲状腺功能测定（血清游离甲状腺素[T4]及促甲状腺激素[TSH])）和静息心电图上的房颤图像。