Table 1.
Patient characteristics and treatment
| Total (pT1a and pT1b) | pT1a | pT1b | |
|---|---|---|---|
|
N. of patients |
402 |
82 |
320 |
|
Distribution by age |
|
|
|
| 18–34 |
7 (1.7%) |
2 (2.4%) |
5 (1.6%) |
| 35–49 |
85 (21.1%) |
19 (23.2%) |
66 (20.6%) |
| 50–69 |
230 (57.2%) |
47 (57.3%) |
183 (57.2%) |
| ≥ 70 |
80 (19.9%) |
14 (17.1%) |
66 (20.6%) |
|
Menopausal status |
|
|
|
| Pre- |
101 (25.1%) |
25 (30.5%) |
76 (23.8%) |
| Post- |
293 (72.9%) |
54 (65.9%) |
239 (74.6%) |
| Missing |
8 (2.0%) |
3 (3.6%) |
5 (1.6%) |
|
Surgery: |
|
|
|
| Breast conservative surgery |
346 (86.0%) |
65 (79.3%) |
281 (87.8%) |
| Mastectomy |
56 (13.9%) |
17 (20.7%) |
39 (12.2%) |
|
Node sentinel biopsy |
|
|
|
| Yes |
319 (79.4%) |
64 (78.0%) |
255 (79.7%) |
| No |
83 (20.6%) |
18 (22.0%) |
65 (20.3%) |
|
Axillary nodal dissection |
|
|
|
| Yes |
137 (34.1%) |
31 (37.8%) |
106 (33.1%) |
| No |
265 (65.9%) |
51 (62.2%) |
214 (66.9%) |
|
Radiotherapy |
|
|
|
| Yes |
317/402 (78.9%) |
58/82 (70.7%) |
259/320 (81.0%) |
| No | 85/402 (21.1%) | 24/82 (29.3%) | 61/320 (19.0%) |