Table 4 Spearman’s rho correlation coefficient, the Kappa statistics and the descriptive level (p-value) based on the ordinal data (scores).

From: Scientific validation of three-dimensional stereophotogrammetry compared to the IGAIS clinical scale for assessing wrinkles and scars after laser treatment

 

Spearman’s rho

p-value

Kappa

p-value

Observers scores on 2D images (n = 48 cases)

Observer A x Observer B

0.52

< 0.001

0.41

< 0.001

Observer A x Observer C

0.54

< 0.001

0.16

0.59

Observer A x 3D SPM roughness ∂ reduction

0.19

0.204

0.06

0.13

Observer A x 3D SPM highest ∂ reduction

0.45

< 0.001

0.18

0.03

Observer A x 3D SPM simultaneous analysis of both parameters

0.47

< 0.001

0.18

0.35

Observer B x Observer C

0.67

< 0.001

0.38

< 0.001

Observer B x 3D SPM roughness ∂ reduction

0.37

< 0.001

0.10

0.04

Observer B x 3D SPM highest ∂ reduction

0.48

< 0.001

0.18

0.03

Observer B x 3D SPM simultaneous analysis of both parameters

0.48

< 0.001

0.25

0.003

Observer C x 3D SPM roughness ∂ reduction

0.61

< 0.001

0.13

0.82

Observer C x 3D SPM highest ∂ reduction

0.70

< 0.001

0.41

< 0.001

Observer C x 3D SPM simultaneous analysis of both parameters

0.70

< 0.001

0.43

< 0.001

Observers scores on 3D images (n = 48 cases)

Observer A x Observer B

0.75

< 0.001

0.46

< 0.001

Observer A x Observer C

0.67

< 0.001

0.97

< 0.001

Observer A x 3D SPM roughness ∂ reduction

0.51

< 0.001

0.13

0.034

Observer A x 3D SPM highest ∂ reduction

1.0

< 0.001

1.0

< 0.001

Observer A x 3D SPM simultaneous analysis both parameters

0.99

< 0.001

0.97

< 0.001

Observer B x Observer C

0.74

< 0.001

0.49

< 0.001

Observer B x 3D SPM roughness ∂ reduction

0.47

0.01

−0.01

0.815

Observer B x 3D SPM highest ∂ reduction

0.75

< 0.001

0.46

< 0.001

Observer B x 3D SPM simultaneous analysis of both parameters

0.79

< 0.001

0.46

< 0.001

Observer C x 3D SPM roughness ∂ reduction

0.52

< 0.001

0.01

0.98

Observer C x 3D SPM highest ∂ reduction

0.67

< 0.001

0.36

< 0.001

Observer C x 3D SPM simultaneous analysis of both parameters

0.69

< 0.001

0.36

< 0.001

  1. x = versus.
Back to article page