Table 3.

Logistic Regression of the Treatment Effects for Constricted Ear by Age, Treatment Duration, and Classification^a

Independent Variable	Odds Ratio (95% CI)	P
Age at application	0.95 (0.91–0.99)	0.01
Treatment duration	1.62 (1.14–2.30)	<0.01
Classification
Class 1	19.95 (2.04–194.78)	0.01
Class 2	6.67 (1.03–43.13)	0.04
Class 3b	1

^aThe dependent variable was the treatment effect (variable assignment: success = 1; no success = 0); independent variables included classification of constricted ear, age at application, and treatment duration.

^bCategorical variable: class 3 for reference category.