Table 1

The clinicopathological data of the patients

Characteristic		n	%
No. of patients		420	100
Age, yr
Mean (range)	59.1 (23.3–91.6)
Tumor size
T₁		218	52
T₂		168	40
T₃		24	6
T₄		10	2
Lymph node status
Negative		244	58
Positive		168	40
Unknown		8	2
Stage
I		160	38
II		213	51
III		39	9
Unknown		8	2
Histological type
Ductal		270	64
Lobular		68	16
Other		82	20
Histological grade
I		110	26
II		192	46
III		118	28
ER status
Positive		326	78
Negative		93	22
Data not available		1	<1
PR status
Positive		261	62
Negative		157	37
Data not available		2	1
Menopausal status
Premenopausal		131	31
Postmenopausal		289	69
Recurrence at 5 yr
No		344	82
Yes		76	18
Cause of death at 5 yr
Alive		333	79
Breast cancer		50	12
Other		37	9