Table 2.

Multivariable logistic regression analysis for predictive factors of the medium- to high-risk group in the derivation cohort.

	Odds ratio [95% CI]	p-value
Gender: Male	3.91 [2.58, 5.92]	<0.001
Age	0.94 [0.92, 0.96]	<0.001
LTD	26.7 [10.57, 69.22]	<0.001
Bilateral: Yes	1.44 [1.01, 2.30]	0.03
Multifocal: Yes	1.14 [1.01, 2.26]	0.04

LTD, largest tumor diameter.