Table 2 FT3 and FT4 levels, as well as their ratios, in patient groups according to age

Control (n = 129)

n

24

19

31

36

19

129

FT3

4.11 ± 0.56

4.29 ± 0.43^α

4.14 ± 0.38

3.89 ± 0.50^α

3.93 ± 0.56

4.06 ± 0.50

FT4

1.36 ± 0.14

1.38 ± 0.11

1.36 ± 0.14

1.33 ± 0.16

1.31 ± 0.10

1.35 ± 0.14

FT3/FT4

3.02 ± 0.38

3.12 ± 0.31

3.07 ± 0.38

2.95 ± 0.35

3.01 ± 0.50

3.03 ± 0.38

A/Hypoplasia (n = 22)

n^b

14

20

22

21

24

101

FT3

4.15 ± 0.51

3.86 ± 0.42

3.91 ± 0.45

3.84 ± 0.60

3.52 ± 0.60

3.82 ± 0.55*

FT4

1.95 ± 0.20**

1.81 ± 0.31**

1.76 ± 0.26**

1.85 ± 0.59**

1.90 ± 0.69**

1.85 ± 0.47**

FT3/FT4

2.15 ± 0.25**

2.18 ± 0.30**

2.25 ± 0.39**

2.23 ± 0.34**

2.03 ± 0.30**

2.17 ± 0.33**

Central (n = 27)

n^b

11

31

46

31

26

145

FT3

3.50 ± 0.48

3.49 ± 0.53**

3.51 ± 0.64**

3.63 ± 0.64

3.46 ± 0.54

3.52 ± 0.58**

FT4

1.24 ± 0.23

1.31 ± 0.17

1.43 ± 0.29

1.45 ± 0.30

1.49 ± 0.25

1.41 ± 0.27

FT3/FT4

2.94 ± 0.58

2.68 ± 0.51*

2.49 ± 0.37**

2.52 ± 0.37*

2.37 ± 0.40**

2.55 ± 0.45**