Table 1.
Characteristics of the study population and tissue groups
| Patient tissue groups | No. of samples (%) | Patient age (years) | |
|---|---|---|---|
| Mean (Median) | Range | ||
| Normala | 42 (100%) | 55.6 (53) | 29-85 |
| CIS without invasion | 35 (100%) | 56.0 (58) | 35-80 |
| DCIS | 34 (97.1%) | 56.1 (58) | 35-80 |
| LCIS | 1 (2.9%) | 52.0 (52) | 52-52 |
| CIS with invasion | 36 (100%) | 54.1 (55) | 29-74 |
| DCIS/T1mic | 11 (30.6%) | 54.5 (55) | 38-74 |
| DCIS/IDC | 21 (58.3%) | 53.3 (55) | 29-72 |
| LCIS/ILC | 4(11.1%) | 57.0 (59) | 47-63 |
| IBC | 98 (100%) | 57.8 (57) | 28-88 |
| IDC | 76 (77.5%) | 56.4 (56) | 28-88 |
| ILC | 22 (22.5%) | 62.6 (62) | 32-87 |
aHistologically normal breast epithelium from patients with breast cancer.