Table 1 Cohort characteristics

n

(%)

Age at diagnosis (years)

< 50

9

(23.7)

51–60

13

(34.2)

61–70

6

(15.8)

> 71

10

(26.3)

median age (years)

57.0

Tumor side

Left

22

(57.9)

Right

16

(42.1)

Surgery

BCS

36

(94.7)

Mastectomy with immediate reconstruction

2

(5.3)

Tumour size

ypT0

7

(18.4)

pTis

4

(10.6)

pT1

22

(57.9)

pT2

4

(10.6)

pT3

1

(2.6)

Nodal status

pN0

30

(78.9)

pN+

5

(13.2)

pNx

3

(7.9)

Grade

G1

5

(13.2)

G2–3

33

(86.8)

Hormone Receptor

positive

27

(71.1)

negative

10

(26.3)

unknown (DCIS)

1

(2.6)

Her2/neu Status

positive

9

(23.7)

negative

27

(71.0)

unknown (DCIS)

2

(5.3)

Radiotherapy regimen

Normofractionated (50Gy/25fx)

15

(39.5)

Hypofractionated (40Gy/15fx)

23

(60.5)

Boost

no

21

(55.3)

yes

17

(44.7)

BMI

median (range)

22.3

(17.2–28.5)