Table 3.

Gender difference of FT3/FT4 ratio in Control

		3–5 y	6–8 y	9–11 y	12–14 y	15–18 y	Total
Male	n	10	11	19	29	12	81
	FT3/FT4	3.03 ± 0.27	3.23 ± 0.32	3.06 ± 0.30	3.02 ± 0.34	3.09 ± 0.37	3.06 ± 0.32
Female	n	14	8	12	7	7	48
	FT3/FT4	3.02 ± 0.0.46	2.97 ± 0.25	3.08 ± 0.50	2.83 ± 0.16	3.11 ± 0.23	3.02 ± 0.40

Values are mean ± standard deviation