TABLE 5.

TSH, FT3, and FT4 concentration of lactating rats.

Group	N	TSH (mIU/L)	FT3 (pg/mL)	FT4 (pg/mL)
LI	6	0.01 ± 0.01	1.72 ± 0.45	8.45 ± 2.58
NI	6	0.05 ± 0.15	1.68 ± 0.45	9.76 ± 2.01
10HI	6	0.03 ± 0.05	1.60 ± 0.21	13.26 ± 3.78a
50HI	6	0.03 ± 0.02	1.98 ± 0.25	18.84 ± 5.26b
P-value		0.801	0.313	<0.001

TSH, thyroid-stimulating hormone; FT3, free triiodothyronine; FT4, free tetraiodothyronine.

^aCompared with the NI group, P = 0.037.

^bCompared with the NI group, P < 0.001.