Table 4 The mediating effects of testosterone in associations between finger-length indicators and blood pressure in boys

From: The association between digit ratio (2D:4D) and blood pressure among children and adolescents

Model

Effect

SBP

DBP

  

β

SE

t

P

β

SE

t

P

2D model

a

0.58

0.13

4.58

0.000

0.58

0.13

4.58

0.000

 

b

1.50

0.53

2.83

0.005

0.90

0.44

2.07

0.039

 

c'

4.16

1.31

3.19

0.002

1.28

1.08

1.19

0.233

 

ab

2.40

0.36

6.67

0.000

0.74

0.28

2.68

0.007

4D model

a

0.62

0.13

4.86

0.000

0.62

0.13

4.86

0.000

 

b

1.35

0.53

2.57

0.011

0.81

0.44

1.86

0.063

 

c'

5.49

1.31

4.18

0.000

2.14

1.09

1.96

0.050

 

ab

3.39

0.37

9.22

0.000

–

–

–

–

MIDRL model

a

0.46

0.12

4.03

0.000

0.46

0.12

4.03

0.000

 

b

1.62

0.53

3.06

0.002

0.95

0.43

2.19

0.029

 

c'

2.95

1.18

2.49

0.013

0.79

0.97

0.81

0.418

 

ab

1.37

0.31

4.43

0.000

0.36

0.23

1.59

0.112

AIR model

a

0.65

0.13

4.92

0.000

0.65

0.13

4.92

0.000

 

b

1.39

0.53

2.62

0.009

0.84

0.44

1.93

0.054

 

c'

5.25

1.37

3.85

0.000

1.86

1.13

1.64

0.101

 

ab

3.40

0.39

8.76

0.000

–

–

–

–

  1. a was the effect of finger-length indicators on ln T; b was the effect of ln T on blood pressure after adjusting finger-length indicators; c' was the direct effect of finger-length indicators on blood pressure; ab was the indirect effect of ln T in the association between finger-length indicators and blood pressure
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