Table 1.

Tumor characteristics

TNM-stage	Absolute frequencies (n)	Cumulative frequencies (%)
Staging
ypT
0	89	48.6
1	56	30.6
2	16	8.7
3	7	3.8
4	5	2.7
X	10	5.6
ypN
0	56	30.6
1	26	14.2
2	15	8.2
3	3	1.6
Pre-therapeutic
pN0 (sentinal node)	83	45.4
pN+	100	54.6

Tumor biology	Absolute frequencies (n)	Cumulative frequencies (%)
Tumor biology
NST (invasive carcinoma of no special type)	173	94.5
Others	10	5.5

Histological subtype	Absolute frequencies (n)	Cumulative frequencies (%)
Histology
Luminal A
HR+, Her2 neg, Ki67 ≤ 15%	8	4.4
Luminal B
HR+, Her2 neg, Ki67 > 15%	50	27.3
Her2 positive, HR positive	48	26.2
Her2 positive, HR negative	20	11.0
Triple negative	57	31.1

Grading	Absolute frequencies (n)	Cumulative frequencies (%)
Grading
G1	2	1.1
G2	74	40.4
G3	105	57.4
X	2	1.1

HR  hormone receptor