Table 2.

Patient characteristics in further validation (n = 26 patients).

Variables	No. Patients (%)
Gender
Female	26 (100.0%)
Male	0 (0.0%)
Age (y)
≤55	19 (73.1%)
>55	7 (26.9%)
Tumor size
T1	2 (7.6%)
T2	18 (69.2%)
T3	2 (7.6%)
T4	4 (15.3%)
Nodal status
N0	12 (46.2%)
N1	8 (30.8%)
N2	3 (11.5%)
N3	3 (11.5%)
Metastasis
M0	24 (92.2%)
M1	1 (3.9%)
Mx	1 (3.9%)
Pathological grade
G1	3(11.5%)
G2	6(23.1%)
G3	17(65.4%)
Stage
I	2(7.7%)
II	10(38.4%)
III	13(50.0%)
IV	1 (3.9%)
Ki-67
<15%	6(23.1%)
≥15%	20(76.9%)