The period covered by the main audit is from 1st April to 31st March of the year before the booklet is published. There is a 6-month follow up period from March. This allows women time to complete most of the surgical treatment before the audit data are collected and collated for analysis.
The main topic areas are:
- The number and invasive status of screen detected breast cancers
- Non-operative diagnosis and use of diagnostic open biopsy
- Treatment and size of all cancers
- Waiting time
- Lymph node status, invasive grade and NPI score
- Surgical caseload
- Repeat therapeutic operations
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