Table 1. Histological, clinical and molecular characteristics of 167 breast cancer cases receiving adjuvant endocrinetreatment but no chemotherapy.

Characteristic	Group	n	%
Histology	Invasive ductal	141	84
n=167	Invasive lobular	13	8
	Other	13	8
Surgery	Wide local excision	104	62
n=167	Mastectomy	63	38
Endocrine therapy	Tamoxifen adjuvant only	143	86
	Other adjuvant only	7	4
n=167	Primary and adjuvant	17	10
Radiotherapy	No	89	53
n=167	Yes	78	47
Stage	I	38	23
n=167	II	93	56
	III	7	4
Grade	I	26	16
n=167	II	65	39
	III	76	46
Size	Up to 2 cm	67	40
n=165	>2 to 5 cm	98	59
Nodal status	Negative	73	44
n=167	Positive	64	38
Lymphovascular invasion	Negative	95	57
	Positive	71	43
n=166
PgR status	Negative	84	57
n=147	Positive	63	43
Ki67 status	Negative	72	51
n=142	Positive	70	49
ERα status	Negative	53	33
n=160	Positive	107	67