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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

From: Catching and monitoring clinical innovation through performance indicators. The case of the breast-conserving surgery indicator

 

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)

  1. aThis case was a quadrantectomy wrongly classified as 85.4*
  2. 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)