Table I.
Histopatological classification of patients.
| Treatment group, % | ||
|---|---|---|
| Clinicopathological features | RT-WF | WF |
| Total, n | 22.0 | 20.0 |
| Age at diagnosis, years ± SD | 60.1±9.6 | 55.0±10.2 |
| Histological type | ||
| Ductal | 59.1 | 65.0 |
| Lobular | 22.7 | 35.0 |
| Other | 18.2 | 0.0 |
| ER status | ||
| Positive | 100.0 | 95.0 |
| Negative | 0.0 | 5.0 |
| HER2 status | ||
| Positive | 0.0 | 10.0 |
| Negative | 100.0 | 90.0 |
| Molecular classification | ||
| Triple negative | 0.0 | 5.0 |
| Non-triple negative | 100.0 | 95.0 |
| Histological grade | ||
| G1 | 40.9 | 25.0 |
| G2 | 31.8 | 55.0 |
| G3 | 27.3 | 20.0 |
SD, standard deviation; WF, post-operative wound fluid; RT-WF, post-operative and post-intraoperative radiotherapy wound fluid; ER, estrogen receptor; HER2, human epidermal growth factor receptor 2.