Table 3.

Logistic regression model for predicting tumor response

	n	Logistic regression OR [95% CI] ( P value)
Nodal status
N0	51	1 (ref)
N1	80	0.962 [0.446; 2.078] (0.922)
Grading
G2–3	110	1 (ref)
G1	20	1.203 [0.433; 3.339] (0.723)
Baseline tumor size
> 2 cm	16	1 (ref)
≤ 2 cm	114	0.742 [0.242; 2.274] (0.601)
Age
≥ 65 years	100	1 (ref)
< 65 years	31	1.189 [0.483; 2.924] (0.707)
Treatment
LET	65	1 (ref)
LET + ZOL	66	1.722 [0.827; 3.586] (0.147)