Variable | Hypofractionation arm | Conventional arm | |||||
Frequency | Percentage | Frequency | Percentage | ||||
1) Side of the tumour Right Left |
74 101 |
42.3 57.5 |
32 34 |
48.5 51.5 | |||
2) Tumour quadrant UOQ Paracentral UIQ LOQ LIQ |
140 13 8 8 4 |
80 7.6 4.6 4.6 2.3 |
55 5 2 3 1 |
82 7.5 3 4.5 1.5 | |||
3) Tumour status Tx T1 T2 T3 T4 |
6 12 75 50 32 |
3.4 6.9 42.9 28.6 18.3 |
3 1 28 23 11 |
4.5 1.5 42.4 34.8 16.7 | |||
4) Nodal status Nx N0 N1 N2 N3 |
5 42 69 40 19 |
2.9 24 39.4 22.9 10.9 |
3 15 24 16 8 |
4.5 22.7 36.4 24.2 12.1 | |||
5) Composite stage I II III Could not be assessed |
2 70 95 8 |
1.1 40 54.3 4.6 |
- 21 39 6 |
- 31.8 59.1 9.1 | |||
6) Mammogram BIRADS 2 BIRADS 3 BIRADS 4 BIRADS 5 BIRADS 6 |
3 5 28 135 4 |
1.7 2.9 16 77.1 2.3 |
- - 16 49 1 |
- - 24.2 74.2 1.5 | |||
7) Histology IDC Metaplastic carcinoma Papillary carcinoma Lobular invasive carcinoma Secretory carcinoma |
166 3 4 1 1 |
95 1.7 2.3 0.6 0.6 |
63 2 - 1 - |
95.5 3 - 1.5 - | |||
8) Tumour grade 1 2 3 |
5 145 25 |
2.9 83 14.3 |
5 52 9 |
7.5 79 13.6 | |||
9) Other characteristics Lymphovascular space invasion Perineural invasion Base of resection positive Margins positive |
19 4 32 17 |
11 2.3 18.3 9.7 |
19 4 6 2 |
11 2.3 9.1 3 | |||
10) Receptor status ER positive PR positive HER2-neu positive |
80 51 43 |
45.7 29.1 24.6 |
23 12 19 |
34.8 18.2 28.8 | |||