Table 3 Descriptive Statistics for the variable “Morphological Index” (volume/surface)

CLASS II subjects

1.18

1.35

2.53

2.01

.29

8.445E-02

−. 271

.574

 Morphological Index (left)

2.45

.19

2.64

1.95

.42

.180

3.729

.574

CLASS I subjects

 Morphological Index (right)

.68

1.86

2.54

2.21 *

.19

3.762E-02

−.186

.586

 Morphological Index (left)

.51

1.96

2.47

2.17 *

.14

2.152E-02

.081

.586

CLASS III subjects

.45

1.68

2.13

1.94 *

.18

3.330E-02

−1.521

.586

 Morphological Index (left)

.48

1.72

2.20

2.03 *

.16

2.588E-02

−. 262

.586