Table 2 Provision of local and systemic treatments to breast cancer patients
Category/treatment | Sample | Overall | < 70 years | ≥ 70 years | |||
|---|---|---|---|---|---|---|---|
N | % a | N | % a | N | % a | ||
Overall | study sample (8518) | 8518 | 5725 | 2793 | |||
Information on local treatment available | study sample (8518) | 6634 | 77.9 | 4548 | 79.4 | 2086 | 74.7 |
BCS | patients with information on surgery (6634) | 4245 | 64.0 | 3225 | 70.9 | 1020 | 48.9 |
Mastectomy | 2290 | 34.5 | 1300 | 28.6 | 990 | 47.5 | |
None | 99 | 1.5 | 23 | 0.5 | 76 | 3.6 | |
BCS | patients with T1/2N0 tumors and information on surgery (3435) | 244 | 7.1 | 134 | 5.4 | 110 | 11.7 |
BCS + RT | 2427 | 70.7 | 1925 | 77.3 | 502 | 53.2 | |
Mastectomy | 754 | 22.0 | 427 | 17.1 | 327 | 34.6 | |
BCS or mastectomy + RT | patients with T1/2N+ tumors and information on surgery (1995) | 1452 | 72.8 | 1162 | 78.2 | 290 | 57.0 |
Mastectomy + RT | patients with T3/4 tumors and information on surgery (755) | 350 | 46.4 | 232 | 55.6 | 118 | 34.9 |
Residual status available | patients with surgery (6535) | 5709 | 87.4 | 3972 | 87.8 | 1737 | 86.4 |
R0 | 5409 | 94.7 | 3773 | 95.0 | 1636 | 94.2 | |
R1/2 | 300 | 5.3 | 199 | 5.0 | 101 | 5.8 | |
CT information available | study sample (8518) | 6941 | 81.5 | 4961 | 86.7 | 1980 | 70.9 |
CT | patients with N+ or HR negative tumors and information on CT usage (3472) | 2429 | 70.0 | 2171 | 84.9 | 258 | 28.2 |
HT information available | study sample (8518) | 6740 | 79.1 | 4709 | 82.3 | 2031 | 72.7 |
HT | patients with HR positive tumors b and information on HT usage (5122) | 4356 | 85.0 | 3031 | 85.4 | 1325 | 84.3 |
TT information available | study sample (8518) | 4786 | 56.2 | 3375 | 59.0 | 1411 | 50.5 |
TT | patients with HER2/neu positive tumors c and information on TT usage (839) | 208 | 24.8 | 183 | 29.3 | 25 | 11.7 |