Prophylaxis (n = 14) | Post WBRT (n = 30) | Control (n = 32) | p | ||||
---|---|---|---|---|---|---|---|
n | % | n | % | n | % | ||
Age (year) | |||||||
Median (range) | 45 (34–65) | 49 (32–65) | 50 (39–65) | 0.13 | |||
BMI | |||||||
Median (range) | 21.3 (17–28) | 22.3 (17–33) | 20.9 (16–29) | 0.28 | |||
Affected breast | |||||||
Left | 8 | 57 | 18 | 60 | 14 | 44 | 0.4 |
Right | 6 | 23 | 12 | 40 | 18 | 56 | |
Tumor location | |||||||
Inner | 0 | 0 | 2 | 7 | 1 | 3 | 0.24 |
Lateral | 13 | 93 | 28 | 93 | 29 | 91 | |
Central | 1 | 7 | 0 | 0 | 2 | 6 | |
Smoking | |||||||
Current | 0 | 0 | 0 | 0 | 1 | 3 | 0.74 |
Past | 4 | 29 | 6 | 20 | 6 | 19 | |
Never | 10 | 71 | 24 | 80 | 25 | 78 | |
Chemotherapy before RT | |||||||
Yes | 4 | 29 | 5 | 83 | 4 | 13 | 0.41 |
No | 10 | 71 | 25 | 17 | 28 | 87 | |
Endocrine therapy before RT | |||||||
Yes | 1 | 7 | 2 | 7 | 1 | 3 | 0.77 |
No | 13 | 93 | 28 | 93 | 31 | 97 | |
RT | |||||||
Energy (MV) | |||||||
4 | 10 | 72 | 18 | 60 | 24 | 75 | 0.43 |
6 | 4 | 29 | 12 | 40 | 8 | 25 | |
Boost | |||||||
10–18 Gy | 9 | 64 | 15 | 50 | 16 | 50 | 0.63 |
No | 5 | 36 | 15 | 50 | 16 | 50 |