National Bowel Cancer Audit – impact of feedback reports 2006 Annual Report –Trust level outcomes anonymised –30% participation –56% case ascertainment –17% data completeness for risk adjustment 2012 Annual Report –Outcomes reported on trust identifiable basis –100% participation –87% case ascertainment –80% data completeness for risk adjustment Possible to determine the survival status at 30-days and 90- days of over 99.9% of patients who had major surgery
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