Table 2. Subdivided demographic data and comparison of measurement parameters.

The values are given as the mean and the standard deviation.

Group A1, 0° or more improvement of the rotation angle and 30% or more improvement of Cobb angle after the initial brace treatment; Group A2, 0° or more improvement of the rotation angle and less than 30% improvement of Cobb angle after the initial brace treatment; Group B1, more than 0° deterioration of the rotation angle and 30% or more improvement of Cobb angle after the initial brace treatment; Group B2, more than 0° deterioration of the rotation angle and less than 30% improvement of Cobb angle after the initial brace treatment.

^a)Improve rate was calculated using the following formula: (Cobb angle at pre-treatment–Cobb angle at initiation of bracing or at final follow-up)/Cobb angle at pre-treatment×100%; ^b)Differences of rotation angle was calculated using the following formula: rotation angle at pre-treatment–rotation angle at initiation of bracing or at final follow-up; ^c)p<0.05 vs. Group A1; ^d)p<0.001 vs. Group A1; ^e)p<0.05 vs. Group A2; ^f)p<0.01 vs. Group B1; ^g)p<0.001 vs. Group A2; ^h)p<0.001 vs. Group B1.