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. 2011 Sep 2;7(4):679–684. doi: 10.5114/aoms.2011.24139

Table I.

Reference intervals of thyroid function in normal pregnant women

Gestation	Group	n	TSH [mlU/l]		FT4 [pmol/l]		TPOAb [IU/ml]
Gestation	Group	n	M(P_2.5-P_97.5)	IQR	M(P_2.5-P_97.5)	IQR	M(P_2.5-P_97.5)	IQR
1^st trimester	SLRI^[24]	301	1.00 (0.02-3.65)^#	1.18	15.48 (11.85-21.51)^#	3.05	6.35 (5.00-19.69)^*	4.03
1^st trimester	GSRI	406	1.08 (0.19-3.54)^#	1.26	16.04 (12.01-24.62)^#	3.06	8.63 (5.00-20.45)^#	6.83
2^nd trimester	SLRI^[24]	301	1.26 (0.36-3.46)^#	0.93	12.08 (9.45-16.26)^*^#	2.12	7.05 (5.00-19.92)^*	5.13
2^nd trimester	GSRI	388	1.35 (0.38-3.29)^#	0.94	12.64 (9.53-16.91)^#	2.46	9.57 (5.00-31.05)^#	8.38
3^rd trimester	SLRI^[24]	301	1.50 (0.44-5.04)^*^#	1.10	12.62 (9.30-17.14)^#	2.59	8.63 (5.00-21.96)^*^#	4.97
3^rd trimester	GSRI	661	1.72 (0.51-5.43)^#	1.36	12.86 (9.37-17.14)^#	2.52	9.71 (5.00-25.68)^#	6.95
Non-pregnancy^[24]		150	2.10 (0.75-5.28)	1.35	17.71 (14.35-21.69)	2.22	6.78 (5.00-22.42)	2.92

^*

Compared with GSRI group, p < 0.05,

^#

Compared with non-pregnancy group, p < 0.05