Evaluation of Ki-67 proliferation and apoptotic index before, during and after neoadjuvant chemotherapy for primary breast cancer

Table 1 Patient characteristics

		n	Percentage
Age: median		51 years
Age: range		29–65
Menstrual status	Pre	14	52
	Peri	6	22
	Post	7	26
Clinical TNM stage at diagnosis	T2	12	44
	T3	13	48
	T4	2	7
Clinical node status	N0	17	63
	N1	10	37
Breast	Right	15	56
	Left	12	44
Breast surgery	Wide excision	12	44
	Mastectomy	15	56
Postoperative radiotherapy	Nil	2	7
	Breast	12	44
	Chest wall	13	48
ER status (biopsy)	ER-positive	15	56
	ER-negative	12	44
HER-2 status (biopsy)	HER-2-positive	11	41
	HER-2-negative	16	59
Tumour grade	Unknown*	5	19
	G1	2	7
	G2	9	33
	G3	11	41
Pathological T stage	pCR	0	0
	pT1	8	30
	pT2	17	63
	pT3	2	7
Pathological N stage	pN0	11	41
	pN1	12	44
	pNX	4	15

*Grading not possible due to chemotherapy artefact. ER, oestrogen receptor; HER-2, human epidermal growth factor 2; TNM, tumour, node, metastasis.

ISSN: 1465-542X