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Table 1 Baseline characteristics of the entire sample and the identified sub-groups.

From: Effectiveness of complete conservative treatment for adolescent idiopathic scoliosis (bracing and exercises) based on SOSORT management criteria: results according to the SRS criteria for bracing studies - SOSORT Award 2009 Winner

Sub-groups   Abbreviation Number F/M Age BMI °Cobb AI ATR
  Total braced   46 43/1 12.8 ± 1.5 18.7 ± 2.6 30.4 ± 4.4 3.4 (0-6) 7.8 ± 4.1
  Exercises   2 1/1 11.6 ± 1.9 26.7* 26.0 ± 1.1 3* 4.5*
Curvature type Thoracic TH 13 12/1 13.2 ± 1.9 19.2 ± 1.4 31.8 ± 4.3 4.2 (2-6) 8.3 ± 4.1
  Thoracolumbar TL 5 5/0 12.3 ± 1.3 18.3 ± 1.8 33.4 ± 4.8 3.0 (2-4) 11.2 ± 2.5
  Lumbar LU 16 15/1 13.0 ± 1.5 18.2 ± 2.4 29.6 ± 4.3 2.5 (0-4) 5.9 ± 3.5
  Double major DM 13 11/1 12.5 ± 1.4 19.6 ± 5 28.7 ± 3.9 4.0 (2-6) 8.4 ± 4.9
  P    NS NS NS TL>DM T>TL DM>L TL>L
Magnitude of curvature 25-30 S 24 23/1 12.5 ± 1.4 18.7 ± 3.1 27.0 ± 1.9 3.1 ± 1.5 6.8 ± 4.5
  31-35 M 15 13/2 13.0 ± 1.6 18.8 ± 1.3 33.0 ± 2.5 3.8 ± 1.5 8.9 ± 3.7
  36-40 L 7 7/0 13.7 ± 2.0 18.5 ± 2.4 37.7 ± 1.6 3.5 ± 1.4 8.7 ± 3.4
  P    NS NS NS - NS NS
Skeletal maturity Risser 0 R0 28 27/2 12.4 ± 1.5 17.9 ± 2.3 29.4 ± 4.2 3.5 ± 1.5 7.7 ± 4.1
  Risser 1 R1 6 6/1 12.4 ± 1.2 20.6 ± 3.7 33.3 ± 4.0 3.8 ± 0.8 10.1 ± 4.1
  Risser 2 R2 12 11/1 14.1 ± 1.5 18.8 ± 1.3 31.3 ± 4.5 2.9 ± 1.8 6.7 ± 4.1
  P    NS R2>R0 R2>R1 NS R1>R0 NS NS
Treatment Risser cast RC 2 2/0 11.4 ± 0.1 - 29.5 ± 6.4 6* 5*
  Brace 23 hours/day B23 14 13/1 13.2 ± 1.7 18.3 ± 2.4 34.5 ± 3.9 3.8 ± 1.4 9.8 ± 4.4
  Brace 21 hours/day B21 23 22/1 13.0 ± 1.5 18.5 ± 1.9 28.2 ± 3.3 2.9 ± 1.5 6.5 ± 3.9
  Brace 18 hours/day B18 7 6/1 12.4 ± 1.8 17.8 ± 0.9 31.1 ± 2.7 3.3 ± 1.1 9.0 ± 0.9
  P    NS NS NS C23>C21 C18>C21 NS C23>C21
  1. NS: not significant. * only one value.