TPO and hematocrit: In addition, significantly lower selenium levels were observed in HT patients with higher anti‐TPO levels (≥400 IU/ml) than in those with lower autoantibody titers (<400 IU/ml) (72.75 [52.10–88.43] vs. 89.04 [65.53–117.51] μg/L, respectively; p = .05).