Table 3. Reference centre: expert reading, assessment and tumour findings.
| Expert reading | 24 470 (23.8% of all examinations) |
|---|---|
| Time between second and expert reading (days)a | 14.7 (10.4) 13.0 |
| Result | |
| No breast cancer (radiological) | 17 827 72.9% |
| Assessment in reference centre recommended | 6442 26.3% (6.3% of all examinations) |
| Open surgical biopsy recommended | 121 0.5% |
| Otherb | 80 0.3% |
| Assessments performed in the reference centre | 5766 (89.6% of recommended assessments) |
|---|---|
| Time between expert reading and assessment (days)a | 30.8 (26.3) 26.0 |
| Percutaneous interventions performed | 1540 (26.7% of performed assessments) |
| Histologically verified breast cancer | 661 42.9% |
| Benign findings | 879 57.1% |
| Final assessment result | |
| No breast cancer (clinical and radiological) | 4714 81.8% |
| Histologically verified breast cancer | 661 11.5% |
| Open surgical biopsy recommended | 286 5.0% |
| Otherc | 105 1.8% |
| Tumour findings | |
| Total findings | 1056 (10.3 per 1000 examinations) |
a
Mean, standard deviation and median.
b
20 missing cases, 57 cases where mammography had to be repeated, 1 case with no further diagnosis (metastases), 2 cases lost to follow up.
c
31 missing cases, 74 cases with need of further non operative diagnosis but lost to follow up.