Characterization of β2-microglobulin expression in different types of breast cancer

BMC Cancer

Table 1 Patient characterization

Variable	IHC staining	Real-time PCR and IHC	Total
Case no.	164	166	330
Age (years)
<59	126	143	269
≥60	37	21	58
Stage
I + II	55	57	112
III + IV	29	40	69
Lymph node metastasis
Present	59	34	93
Absent	63	53	116
Benign breast tumors	123	0	123

ISSN: 1471-2407