Table 5. Factors affecting local advance or distant metastasis: binary classification logistic regression analysis.

Factors	b	SE(b)	Waldc2	df	P	OR	OR95%CI
x 1 (Location)	-0.471	0.214	4.844	1	0.028	0.624	0.410	0.950
x 2 (Tumor size)	0.545	0.141	14.859	1	0.000	1.724	1.307	2.275