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. 2023 Sep 8;14:1227530. doi: 10.3389/fendo.2023.1227530

Table 3.

The thyroid hormones characteristics of different types NTIS.

Thyroid function Euthyroid
(n=605)
NTIS type1
(n=349)
NTIS type2
(n=98)
NTIS type3
(n=57)
NTIS type4
(n=16)
FT3, pmol/L 3.0 (2.7-3.4) 1.9 (1.6-2.2) 2.0 (1.7-2.1) 1.5 (1.5-1.8) 1.6 (1.5-1.9)
FT4, pmol/L 14.2 (12.7-15.9) 12.3 (10.9-13.8) 12.9 (11.4-14.6) 8.2 (7.4-8.6) 7.8 (7.2-8.4)
TSH, μIU/mL 1.4 (0.8-2.2) 1.0 (0.6-1.6) 0.2 (0.1-0.3) 1.1 (0.6-1.9) 0.2 (0.1-0.2)
TT3, nmol/L 1.0 (0.8-1.2) 0.6 (0.5-0.7) 0.6 (0.4-0.7) 0.5 (0.4-0.6) 0.4 (0.3-0.5)
TT4, nmol/L 91.8 (75.9-110.4) 68.6 (56.9-79.7) 67.0 (52.6-84.5) 39.8 (31.9-47.2) 34.6 (31.9-41.1)
rT3, ng/dl 0.5 (0.4-69.6) 0.5 (0.3-107.2) 0.5 (0.3-96.6) 46.9 (2.9-96.7) 83.1 (0.5-101.7)

Data are presented as median (interquartile range).

NTIS, nonthyroidal illness syndrome; FT3, free triiodothyronine; FT4, free thyroxine; TSH, thyroid stimulating hormone; TT3, total triiodothyronine; TT4, total thyroxine; rT3, reverse triiodothyronine.