Effects of low-dose tamoxifen on breast cancer biomarkers Ki-67, estrogen and progesterone receptors

Table 1 Percentage of nuclei stained by ki-67 (clone MIB-1) in Group A (control) before and after 14 days (magnification 400×).

PATIENT	Control (before) (% stained cells)	Control (after 14 days) (% stained cells)
1	29.31	26.12
2	30.83	31.24
3	75.35	69.56
4	28.17	5.68
5	28.39	25.30
6	42.60	40.51
7	20.32	25.63
8	49.25	50.01
9	50.39	52.18
10	70.21	68.92
11	21.52	30.61
12	10.52	5.23
13	2.14	5.76
14	1.23	1.52
15	90.54	81.87
16	2.36	3.49
17	0.25	0.36
18	32.56	36.48
19	2.56	4.89
20	12.62	8.98
MEAN	30.06	28.72