Table 2 Statistical data of FT4 measurements

Mean FT4 ± SD in females

1.2 ± 0.03

1.2 ± 0.24

1.1 ± 0.22

1.2 ± 0.24

1.1 ± 0.24

Mean FT4 ± SD in males

1.3 ± 0.02

1.2 ± 0.25

1.1 ± 0.23

1.1 ± 0.22

1.1 ± 0.23

z values and p values between gender

z = 3.02 p = -0.0001

z = 1.26 p = 0.28

z = 0.70 p = 0.31

z = -1.63 p = 0.08

z = 0.39 p = 0.31

Minimum level FT4

0.7

0.7

0.7

0.7

0.7

Maximum level FT4

1.9

1.9

1.8

1.8

1.8

Lower FT4 95% CI

1.2

1.2

1.1

1.1

1.1

Upper FT4 95% CI

1.3

1.2

1.2

1.2

1.2

Mean FT4 ± SD assumed for both genders

1.2 ± 0.3

1.2 ± 0.3

1.1 ± 0.2

1.1 ± 0.2

1.1 ± 0.2

Minimum and maximum FT4 RI assumed for both genders

0.7 – 1.9

0.7 – 1.7