Variable | N | Fail | 24-month progression-free survival (%) | p |
---|---|---|---|---|
Age (years) | Â | Â | Â | 0.38 |
< 50 | 113 | 11 | 92.7 | Â |
[50–74] | 395 | 28 | 97.1 |  |
≥ 75 | 110 | 9 | 96.4 |  |
Hormonal status | Â | Â | Â | Â |
Estrogen receptor | Â | Â | Â | <0.01 |
Positive | 539 | 37 | 97.3 | Â |
Negative | 73 | 10 | 85.9 | Â |
Progesterone receptor | Â | Â | Â | <0.001 |
Positive | 482 | 29 | 97.8 | Â |
Negative | 130 | 18 | 89.2 | Â |
SBR grade | Â | Â | Â | 0.02 |
1 | 186 | 8 | 98.0 | Â |
2 | 309 | 25 | 96.6 | Â |
3 | 107 | 13 | 91.3 | Â |
TNM classification | Â | Â | Â | Â |
T (mm) | Â | Â | Â | 0.0001 |
<20 | 388 | 19 | 97.9 | Â |
≥ 20 | 217 | 26 | 92.7 |  |
N | Â | Â | Â | <0.0001 |
0 | 405 | 18 | 98.2 | Â |
≥ 1 | 203 | 28 | 93.0 |  |
Period | Â | Â | Â | 0.71 |
Before | 287 | 32 | 96.8 | Â |
After | 331 | 16 | 95.6 | Â |
Centre | Â | Â | Â | 0.63 |
Reference centre | 305 | 25 | 96.1 | Â |
Peripheral centres | 313 | 23 | 95.3 | Â |