Outcomes	Strength of evidence	Conclusions/comments
1. Surgery rates		There was no statistical difference between bracing and observation with respect to pooled surgical rates.
2. Failure rates		There was a statistically significant difference in failure rate between observation (45%) and brace treatment (15%) from one study.
3. Quality of life		Findings were inconsistent. Using the SRS-22 questionnaire one study favored the observation group in overall score (P = .005). Another study using the SRS-22 favored the brace group in the pain and satisfaction sub-domains, but was not statistically significant. One study using the Quality of Life Profile for Spine Deformities demonstrated the greatest difference in postoperative QoL scores in favor of bracing (P < .001).
4. Curve changes		Reported precurve and postcurve angles showed a treatment effect favoring bracing, but statistical significance for these treatment effects could not be calculated. Evaluated rates of curve-angle failure favored bracing, but were not significant.