Table 2 Cumulative incidence of in-breast recurrences (IBR) and Kaplan-Meier estimates of overall survival (OS)
IBR | OS | |||||
|---|---|---|---|---|---|---|
5 y (%) | 10 y (%) | p | 5 y (%) | 10 y (%) | p | |
Age at diagnosis (years) | ||||||
< 50 | 12.6 | 17.6 | 0.251 | 100.0 | 98.5 | < 0.001 |
50–69 | 9.7 | 16.4 | 98.2 | 95.1 | ||
≥ 70 | 7.0 | 13.8 | 88.1 | 74.6 | ||
Tumour localisation | ||||||
Left | 9.4 | 14.8 | 0.134 | 97.0 | 93.0 | 0.830 |
Right | 11.0 | 18.3 | 97.6 | 93.8 | ||
Tumour size | ||||||
< 25 mm | 12.6 | 17.5 | 0.274 | 96.7 | 94.9 | 0.225 |
≥ 25 mm | 6.7 | 6.7 | 88.9 | 84.2 | ||
Grade | ||||||
G1 | 12.0 | 22.4 | 0.212 | 93.3 | 93.3 | 0.444 |
G2 | 5.3 | 12.4 | 96.6 | 95.3 | ||
G3 | 11.7 | 15.9 | 99.4 | 90.7 | ||
Multifocality | ||||||
no | 10.0 | 16.2 | 0.592 | 97.3 | 93.4 | 0.972 |
yes | 11.1 | 19.4 | 97.6 | 93.1 | ||
Resection margins | ||||||
R0 | 9.3 | 15.6 | 0.526 | 97.6 | 93.1 | 0.953 |
R1–2 | 14.8 | 20.2 | 96.2 | 96.2 | ||
Hormone receptor status | ||||||
positive | 8.6 | 16.2 | 0.719 | 97.2 | 94.3 | 0.501 |
negative | 13.0 | 15.6 | 97.6 | 90.1 | ||
Radiotherapy | ||||||
no | 13.2 | 20.0 | 0.012 | 95.1 | 90.0 | 0.001 |
yes | 8.0 | 13.6 | 99.1 | 96.7 | ||
Endocrine therapy | ||||||
no | 10.9 | 17.4 | 0.111 | 97.2 | 93.6 | 0.319 |
yes | 5.5 | 10.7 | 97.6 | 92.3 | ||