Table 3 Results of the Passing-Bablok regression analyses.

From: Equations for smartphone prediction of adiposity and appendicular lean mass in youth soccer players

 

Male players

(N = 122)

Female players

(N = 69)

Body fat %

 Linear model validity

  Cusum test for linearity

P = 0.18

P = 0.29

 Systematic differences

  Intercept

27.4

− 11.8

  95% confidence interval

42.2 to − 18.0

− 25.8 to − 2.4

 Proportional differences

  Slope

2.4

1.3

  95% confidence interval

1.9 to 3.3

0.9 to 1.7

Total lean mass (kg)

 Linear model validity

  Cusum test for linearity

P = 0.37

P = 0.65

 Systematic differences

  Intercept

− 1.9

3.0

  95% confidence interval

− 6.1 to 1.9

− 2.7 to 8.1

 Proportional differences

  Slope

1.1

1.0

  95% confidence interval

1.0 to 1.2

0.9 to 1.1

Appendicular lean mass (kg)

 Linear model validity

  Cusum test for linearity

P = 0.37

P = 0.29

 Systematic differences

  Intercept

− 1.3

− 5.8

  95% confidence interval

− 3.8 to 1.0

− 10.3 to − 1.7

 Proportional differences

  Slope

1.6

1.7

  95% confidence interval

1.5 to 1.7

1.5 to 2.0