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Table 2 Comparison of the baseline demographic and clinical characteristics between the positive and negative AV groups

From: Association between braced curve behavior by pubertal growth peak and bracing effectiveness in female idiopathic scoliosis: a longitudinal cohort study

Variables Negative AV Positive AV P value
Failure rate (%) 36.8 81.2 0.016*,b
Surgical rate (%) 21.1 75.0 0.002*,b
AV at PHV (°/y) −9.6 ± 7.6 8.2 ± 4.0 0.000*,a
Initial curve magnitude (°) 26.3 ± 4.6 26.7 ± 5.7 0.832
Final curve magnitude (°) 29.4 ± 9.1 39.6 ± 14.2 0.015*,a
PHV (cm/y) 8.8 ± 1.5 9.4 ± 1.8 0.327
Timing of PHV (yrs) 11.7 ± 1.1 11.5 ± 0.8 0.732
Age at diagnosis (yrs) 11.0 ± 1.3 10.0 ± 1.0 0.014*,a
Initial SSMS 2.7 ± 0.6 2.2 ± 0.5 0.006*,a
Initial DRU (R) 7.0 ± 0.8 6.4 ± 1.0 0.053
Initial DRU (U) 5.1 ± 0.8 4.3 ± 0.9 0.016*,a
SSMS at PHV 3.4 ± 0.5 3.5 ± 0.6 0.495
DRU (R) at PHV 8.0 ± 0.7 8.0 ± 0.7 0.999
DRU (U) at PHV 5.9 ± 0.5 5.8 ± 0.4 0.244
Percentage of major thoracic curve (%) 47.3 68.8 0.306
Initial height (cm) 145.2 ± 7.2 138.3 ± 8.2 0.013*,a
Final height (cm) 161.3 ± 5.4 159.2 ± 5.6 0.257
  1. AV Angle velocity, PHV Peak height velocity, SSMS Simplified skeletal maturity score, DRU Distal radius and ulna classification
  2. Analyses were performed through
  3. aindependent sample T test
  4. bcrosstab analysis
  5. *p < 0.05