Table 2. Multivariable Regression Analysis for the Preoperative Cobb Angle.

Variable	Level	Coefficient	Standard error
Intercept		12.545	1.362
Age		−0.084	0.042
Sex	Male vs. female	−1.849	0.879
Affected side	Left vs. right	0.008	0.862
Chin-to-eyelid difference		−0.158	0.112
Lateral bending deficit		0.046	0.037
Rotation deficit		−0.093	0.043
Preoperative CMA		0.303	0.068

The coefficient indicates the change in the percentage of one group relative to the reference group (for categorical variables) or the change resulting from one unit increase of the input variable (for continuous variables). Statistical significance was set at a p-value of < 0.05.

CMA: cervicomandibular angle.