Table 1.

p23 Expression in Relation to Stage and TMN from the Breast Tumor Microarray

Samples (N=213)		Cytoplasm P23			P-Value (Tests 1+&2+ vs. 3+)
		1+ (N=2)	2+ (N=22)	3+ (N=189)
Age	mean±SD	46.0±42.24	50.91±10.27	55.12±13.21	0.10*
Nuclear p23	0	2 (100%)	4 (18%)	2 (1%)	<0.0001**
	1+	0	10 (45%)	33 (17%)
	2+	0	7 (32%)	69 (37%)
	3+	0	1 (5%)	85 (45%)
Stage	I	0	3 (14%)	5 (3%)	<0.01**
	II	1 (50%)	11 (50%)	55 (29%)
	III	1 (50%)	8 (36%)	108 (57%)
	IV	0	0	21 (11%)
T	1	0	3 (14%)	7 (4%)	0.09**
	2	1 (50%)	9 (43%)	54 (31%)
	3	1 (50%)	3 (14%)	30 (17%)
	4	0	6 (29%)	81 (47%)
	missing		1	17
N	0	1 (50%)	13 (59%)	50 (27%)	<0.01***
	1	1 (50%)	6 (27%)	46 (24%)
	2	0	3 (14%)	52 (28%)
	3	0	0	40 (21%)
	missing			1
M	0	2 (100%)	22 (100%)	168 (89%)	0.14**
	1	0	0	21 (11%)

^*T-Test,

^**-Fisher Exact Test,

^***-Chi-Square Test