Table 2.

POU5F1/Oct-4 expression in groups classified by different characteristics

Variables	Number	Oct-4-	Oct-4+	P
Age				0.579
<40	26	12	14
40–60	72	37	35
>60	23	9	14
Tumor size				0.873
T1 (Tis)	73	35	38
T2	45	22	23
T3	3	1	2
Histological grade				0.001**
I	20	17	3
II	89	38	51
III	12	3	9
Pathology classification				0.216
DCIS	25	15	10
IDS	85	36	49
Mucinous carcinoma	9	5	4
Paget’s disease	2	0	2
Molecular classification				0.030*
Luminal A	44	16	28
Luminal B	25	12	13
Basal-like	46	29	17
HER-3+	6	1	5
Lymph node metastasis				0.003*
pN0	83	48	35
pN1	33	10	23
pN2	5	0	5

*P < 0.05; **P < 0.01