Table I.

Clinicopathological variables of patient sample.

Variables	Patients, n
Age, years (mean ± SD)	62.5±10.1
Gender
Male	41
Female	10
Tumor size, cm3 (mean ± SD)	6.4±1.6
T classification
1	1
2	6
3	39
4	5
N classification
0	10
1	16
2	20
3	5
Clinical stage
I	1
II	7
IIIa	16
IIIb	20
IV	7

(n=51). SD, standard deviation; T, tumor; N, node.