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Table 3 Thyroid Hormones Values According to Gestational Age in Pregnant Women With High Thyroid Antibody Values

From: Thyroid hormones according to gestational age in pregnant Spanish women

Thyroid Hormone

Gestional Age, wka

Mean

Median

2.5th

%ile

97.5th

%ile

Thyroid-stimulating hormone (μUI/mL)

<11

1.75 ± 3.64

1.25

0.1

13.5

 

11 to 20

1.63 ± 1.30

1.44

0.0

-

 

21 to 30

1.89 ± 0.96

1.62

0.4

-

 

31 to 36

1.72 ± 0.91

1.72

0.2

4.5

 

>36

1.19 ± 0.62

1.19

0.7

-

Free triiodothyronine (pg/mL)

<11

3.31 ± 0.58

3.36

1.7

4.4

 

11 to 20

3.44 ± 0.65

3.59

1.7

-

 

21 to 30

3.24 ± 0.51

3.15

2.3

-

 

31 to 36

3.22 ± 0.47

3.24

2.4

4.3

 

>36

3.02 ± 0.15

3.02

2.9

-

Free thyroxine (ng/dL)

<11

1.06 ± 0.15

1.06

0.8

1.4

 

11 to 20

1.01 ± 0.15

1.03

0.6

-

 

21 to 30

0.89 ± 0.97

0.87

0.7

-

 

31 to 36

0.90 ± 0.13

0.86

0.7

1.3

 

>36

0.90 ± 0.11

0.90

0.8

-

  1. a <11 weeks (n = 330); 11 to 20 weeks (n = 200); 21 to 30 weeks (n = 208); 31 to 36 weeks (n = 269); >36 weeks (n = 14).