Table 1 Main characteristics of the patients

Age division

6–9

27.9% (N = 64)

10–12

30.4% (N = 70)

13–17

41.7% (N = 95)

Gender

girls

80.3% (N = 184)

boys

19.7% (N = 45)

ATI [°]- size of the angle of trunk inclination

N

229

Mean (SD)

6.76 (3.35)

Median (IQR)

6 (5–8)

Range

2–25

X-ray [°]- size of the Cobb angle

N

229

Mean (SD)

21.32 (11.45)

Median (IQR)

18 (14–26)

Range

3–75

Perdriolle angle [°]-angle of vertebrae rotation (AVR)

N

229

Mean (SD)

18.34 (8.56)

Median (IQR)

15 (10–25)

Range

0–50