Selected characteristics of subjects
| Low density (n = 46) | High density (n = 46) | |
|---|---|---|
| Median age | 48.5 | 49.0 |
| Interquartile range | (45–55) | (45–55) |
| Radiological classification (No. of subjects) | ||
| 0% density | 7 | 0 |
| >0–<10% density | 24 | 0 |
| 10–25% density | 14 | 0 |
| 25–50% density | 0 | 1 |
| 50–75% density | 0 | 7 |
| >75% density | 0 | 38 |
| Missing | 1 | 0 |
| Histological classification (No. of subjects) | ||
| Normal | 10 | 1 |
| Stromal fibrosis | 4 | 5 |
| Nonproliferative, fibrocystic change | 23 | 17 |
| Proliferative FCCa without atypia | 8 | 21 |
| Proliferative FCC with atypia | 0 | 1 |
| Not assessed/missing | 1 (fibroadenoma) | 1 (missing) |
a FCC, fibrocystic change.