Table 2. Mean and standard deviation (SD) for the spine and pelvic parameters. The mean trunk imbalance varied only slightly between the age groups and the lateral deviation was comparable for all age groups and genders. In addition the trunk inclination showed no significant difference between the age groups. There was no significant difference found for pelvic tilt, torsion and inclination between the age groups and gender.
| Trunk parameters | Pelvic parameters | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sex | Age group (years) | Inclination (mm) | SD | Imbalance (mm) | SD | Lateral deviation (mm) | SD | Tilt (mm) | SD | Inclination | SD | Torsion | SD |
| Girls | 6–6.9 | 3.4 | 2.3 | 6.49 | 4.63 | 4.5 | 2.1 | 2.39 | 1.8 | 20.07° | 6.48 | 1.39° | 1.05 |
| 7–7.9 | 2.9 | 2.3 | 5.09 | 3.8 | 4.7 | 2.3 | 2.59 | 2.34 | 18.31° | 5.63 | 2.15° | 1.53 | |
| 8–8.9 | 2.5 | 1.7 | 5.3 | 4.14 | 4.8 | 2.3 | 3.46 | 2.78 | 18.6° | 6.22 | 1.35° | 1.28 | |
| 9–9.9 | 1.7 | 1.6 | 6.77 | 4.47 | 4.7 | 2.3 | 2.6 | 1.94 | 20.81° | 4.12 | 1.92° | 1.55 | |
| 10–10.9 | 2.2 | 1.9 | 5.59 | 4.17 | 6.3 | 4.1 | 3.05 | 1.74 | 21.41° | 3.36 | 1.07° | 1.06 | |
| Mean | 2.6 | 2.1 | 5.68 | 4.16 | 4.9 | 2.6 | 2.79 | 2.19 | 19.68° | 5.45 | 1.66° | 1.38 | |
| SD | 0.66 | - | 0.74 | - | 0,74 | - | 0.43 | - | 1.35° | - | 0.44° | - | |
| Boys | 6–6.9 | 2.7 | 2 | 8.79 | 4.99 | 4.1 | 2.4 | 2.51 | 2.22 | 19.23° | 4.86 | 1.38° | 1.25 |
| 7–7.9 | 3.1 | 2.4 | 7.29 | 5.27 | 4.4 | 2.1 | 2.78 | 2 | 19.01° | 7.19 | 1.71° | 1.8 | |
| 8–8.9 | 2.9 | 2.2 | 7.63 | 5.52 | 5.2 | 2.8 | 2.48 | 1.69 | 19.22° | 5.57 | 1.33° | 1.25 | |
| 9–9.9 | 2.8 | 2.1 | 6.55 | 4.56 | 4.7 | 2 | 2.7 | 2.39 | 20.82° | 7.54 | 0.72° | 0.64 | |
| 10–10.9 | 3.3 | 2.1 | 7.12 | 4.5 | 4.6 | 2.2 | 3.58 | 1.65 | 24.3° | 5.67 | 1.53° | 1.38 | |
| Mean | 3 | 2.2 | 7.35 | 5.01 | 4.7 | 2.3 | 2.71 | 1.99 | 19.91° | 6.08 | 1.39° | 1.36 | |
| SD | 0.24 | - | 0.83 | - | 0.41 | - | 0.45 | - | 2.24° | - | 0.38° | - | |
SD, standard deviation.