Risk Factors of the Invasive Breast Cancer Locoregional Recurrence

Table 5

Immunohistochemical staining of the primary node.

Examined group	ER		PR		Her2/neu
	Positive	Negative	Positive	Negative	Positive	Negative
1 A group	38; (39%)	22; (22%)	43; (43%)	16; (17%)	2; (2%)	58; (59%)
1 B group	26; (26%)	13; (13%)	20; (20%)	20; (20%)	26; (26%)	13; (13%)
2 A group	55; (46%)	26; (22%)	50; (42%)	31; (26%)	13; (11%)	68; (57%)
2 B group	18; (15%)	20; (17%)	18; (15%)	20; (17%)	7; (6%)	31; (26%)

The differences between groups are not statistically significant ( > 0,05).
The differences between groups are statistically significant ( < 0,05).