Table 1.
Patient characteristics
| Number of patients | Percent | |
|---|---|---|
| Age | ||
| <40 | 6 | 3 |
| 40–49 | 25 | 14 |
| 50–59 | 43 | 24 |
| 60–69 | 48 | 27 |
| ≥70 | 58 | 32 |
| Nodal status | ||
| pN0 | 89 | 50 |
| pN1 | 79 | 44 |
| pN2 | 8 | 4 |
| pN3 | 4 | 2 |
| Tumor size | ||
| T1 (<2 cm) | 74 | 41 |
| T2 (2–5 cm) | 92 | 51 |
| T3 (>5 cm) | 12 | 7 |
| T4 | 2 | 1 |
| Stage | ||
| 1 | 47 | 26 |
| 2A | 63 | 35 |
| 2B | 49 | 27 |
| 3A | 15 | 9 |
| 3B | 2 | 1 |
| 3C | 4 | 2 |
| Grade | ||
| 1 | 27 | 18 |
| 2 | 74 | 49 |
| 3 | 50 | 33 |
| Missing | 29 | |
| HR status | ||
| Neg | 41 | 23 |
| Pos | 139 | 77 |
| Her2 status | ||
| Neg | 80 | 80 |
| Pos | 20 | 20 |
| Missing | 80 | |
| Adjuvant treatment | ||
| None | 62 | 35 |
| Endocrine | 97 | 55 |
| Chemotherapy | 62 | 35 |
| Radiology modalitya | ||
| CT-scan | 104 | 58 |
| MRI | 55 | 30 |
| Otherb | 21 | 12 |
| Metastatic site | ||
| Bone | 68 | 38 |
| Lymph nodes | 31 | 17 |
| Lung | 54 | 30 |
| Liver | 41 | 23 |
| Brain | 9 | 5 |
| Other | 21 | 12 |
Key demographic and pathological characteristics including age, nodal status, tumor size, stage, grade, HR status, and Her2 status at the time of primary surgery in 180 patients recorded with metastases from breast cancer during 2005–2009 at Haukeland University Hospital, Norway
aRefers to the radiology modality used for the analysis of metastases number and size
bUltrasound, chest x-ray, clinical measurement (caliper)