Risk Factors of the Invasive Breast Cancer Locoregional Recurrence

Table 3

The primary tumor histological grade.

Examined group	Tumor histological grade				Total
	High	Middle	Low	Undifferentiated
1 A group	12; (5,5%)	44; (20%)	8; (4%)	1; (0,5%)	65; (30%)
1 B group	2; (1%)	29; (13%)	2; (1%)	1; (0,5%)	34; (15,5%)
2 A group	5; (2%)	73; (33,5%)	9; (4%)	2; (1%)	89; (40,5%)
2 B group	2; (1%)	25; (11,5%)	2; (1%)	1; (0,5%)	30; (14%)
Total	22; (9,5%)	170; (78%)	21; (10%)	5; (2,5%)	218; (100%)

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