Table 3.

Comparisons of the thyroid parameters of patients with stage I and stage II PTC

Thyroid parameters	TNM staging		P value
	I	II
FT3 (pmol/L)	4.95 (4.58, 5.36)	4.72 (4.25, 5.13)	< 0.001
FT4 (pmol/L)	16.79 (15.21, 18.56)	16.59 (15.10, 18.30)	0.449
TSH (mIU/L)	2.46 (1.69, 3.70)	2.54 (1.76, 3.76)	0.482
TSHI	3.19 (2.77, 3.59)	3.21 (2.86, 3.59)	0.783
TT4RI	41.18 (27.96, 62.15)	42.34 (30.10, 62.18)	0.581
TFQI	0.03 (-0.21, 0.28)	0.05 (-0.17, 0.24)	0.982
PTFQI	0.09 (-0.16, 0.38)	0.09 (-0.11, 0.32)	0.993
FT3/FT4	0.30 (0.27, 0.33)	0.29 (0.25, 0.32)	0.002

Data are expressed as median (interquartile ranges)