Table 1. Descriptive characteristics of the study participants (N:161).
| Median | Range | |
|---|---|---|
| Age (years) | 68.9 | 35.0-87.0 |
| BMI (kg/m2) | 26 | 16.2-45.3 |
| ER* | 90 | 1-100 |
| PgR* | 50 | 1-100 |
| Ki-67* | 15 | 1-80 |
| N | % | |
| ECOG PS | ||
| 0 | 111 | 68.9 |
| 1 | 37 | 23.0 |
| 2 | 7 | 4.3 |
| HER2 | ||
| positive | 13 | 8.1 |
| negative | 143 | 88.80 |
| Metastatic sites | ||
| Number | ||
| 1 | 78 | 48.4 |
| 2 | 65 | 40.4 |
| ≥3 | 18 | 11.2 |
| Pattern | ||
| Bones | 50 | 31.1 |
| Viscera | 17 | 10.6 |
| Miscellanea | 94 | 58.4 |
*Reported values represent the medians and related ranges of ER/PgR receptor and Ki-67 percentage expression; BMI: body mass index; ECOG PS: Eastern Cooperative Oncology Group Performance Status; ER: estrogen receptor; PgR: progesterone receptor; HER2: human epidermal growth factor receptor 2.