Table 4.

the predictors of the bracing outcome determined by a regression model with regularization. For the interaction terms, a positive coefficient shows an increase in the one variable also increased the effect of other variable on the outcome (Progressed group) whereas a negative coefficient suggest that an increase in a variable decreased the effect of other variable on the outcome. Coefficients shown are partial regression coefficients

	Predictor variables	Coefficients	P value
1	Thoracic Cobb angle (In-brace)	2.27	0.025
2	Lordosis (In-brace)	−1.93	0.027
3	Lordosis (Pre-brace) & Kyphosis (In-brace)	0.07	0.046
4	Lordosis (Pre-brace) & Sagittal Type 2	−0.99	0.031
5	Thoracic AVR (Pre-brace) & Rib cage Type 2	0.76	0.040