Table 4.
Cross-tabulation of the number of mastectomies and conservative surgery as derived from HDR data and surgical registry data in the two study hospitals, using the new classification algorithm
| Surgical registry | Total | |||
|---|---|---|---|---|
| Conservative | Reconstructive | Mastectomy | ||
| Florence | ||||
| HDR database | ||||
| Conservative | 72.8% (123) | 0 | 0 | 72.8% (123) |
| Reconstructive | 0 | 16% (27) | 0 | 16% (27) |
| Mastectomy | 0.6%a (1) | 2.4%b (4) | 8.3% (14) | 11.2% (19) |
| Total | 73.4% (124) | 18.3% (31) | 8.3% (14) | 100% (169) |
| Pisa | ||||
| HDR database | ||||
| Conservative | 52.1% (87) | 0 | 0 | 52.1% (87) |
| Reconstructive | 0 | 38.3% (64) | 0 | 38.3% (64) |
| Mastectomy | 0 | 0 | 9.6% (16) | 9.6% (16) |
| Total | 52.1% (87) | 38.3% (64) | 9.6% (16) | 100% (167) |
aThis case was a quadrantectomy wrongly classified as 85.4*
bIn 4 cases, in addition to code 85.4, we found codes 85.89 (other mammoplasty), 86.70 (free flap reconstruction) or 86.93 (insertion of generic tissue expander)