Key result
Comparing submitted versus actual clinical data revealed major discordances in ASA grades and timing of surgery, explaining the unit's false outlier status for 30-day postoperative mortality.
Population
Patients undergoing surgery for colorectal cancer over 2 years in a UK unit
Follow-up
30-day postoperative
Authors
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Data validation prevents false outlier labeling in surgical audits; leaves open registry accuracy at scale.
Observational
No
Accurate data submission is essential for objective comparison of health service delivery outcomes and mortality rates.
Lewis et al. (2012) conducted an observational in Colorectal cancer. Data comparison (submitted vs actual) was evaluated on Discordance between submitted and actual data. Comparing submitted versus actual clinical data revealed major discordances in ASA grades and timing of surgery, explaining the unit's false outlier status for 30-day postoperative mortality.
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