Skip to main content

Table 1 Numbers and ratio of different FT4 and TSH levels in patients with COVID-19 and low FT3 levels

From: Prognostic significance of low TSH concentration in patients with COVID-19 presenting with non-thyroidal illness syndrome

  FT4
> 22 pmol/L 12–22 pmol/L < 12 pmol/L
TSH 0.27–4.2 uIU/mL 7 (4.67%) 102 (68%) 14 (9.33%)
< 0.27 uIU/mL 4 (2.67%) 21 (14%) 2 (1.33%)
  1. FT3 free triiodothyronine, FT4 free thyroxine, TSH thyroid stimulating hormone