Table 3.

Comparisons on immunohistochemistry between CNB and excisional biopsy (cases/total number = %).

	ER proportion	ER magnitude	PR proportion	PR magnitude	HER-2 magnitude	Ki-67 proportion
Upward	22/40 = 55	16/40 = 40	22/40 = 55	14/40 = 35	10/41 = 24.39	14/41 = 34.15
Downward	5/40 = 12.50	5/40 = 12.50	7/40 = 17.50	8/40 = 20	14/41 = 34.15	15/41 = 36.59
General alteration	(22 + 5)/40 = 67.5	(16 + 5)/40 = 52.5	(22 + 7)/40 = 72.5	(14 + 8)/40 = 55	(10 + 14)/41 = 58.54	(14 + 15)/41 = 70.73
Equivalent	13/40 = 32.50	19/40 = 47.50	11/40 = 27.50	18/40 = 45	17/41 = 41.46	12/41 = 29.27

CNB = core needle biopsy, ER = estrogen receptor, HER-2 = human epidermal receptor protein-2, Ki-67 = cell proliferation antigen Ki-67, PR = progesterone receptor.