BACKGROUND: Outcomes for @entity5 surgery are compared with the aim of benchmarking quality of care. Adjusting for @entity1 characteristics is crucial to avoid biased comparisons between providers. The study objective was to develop a case-mix adjustment model for comparing 30- and 90-day mortality and @entity834 rates after @entity5 resections. METHODS: The study reviewed existing models, considered expert opinion and examined audit data in order to select predictors that were consequently used to develop a case-mix adjustment model for the National Oesophago-Gastric Cancer Audit, covering England and Wales. Models were developed on @entity1 undergoing surgical resection between April 2011 and March 2013 using logistic regression. Model calibration and discrimination was quantified using a bootstrap procedure. RESULTS: Most existing risk models for oesophagogastric resections were methodologically weak, outdated or based on detailed laboratory data that are not generally available. In 4882 @entity1 with @entity5 used for model development, 30- and 90-day mortality rates were 2  3 and 4  4 per cent respectively, and 6  2 per cent of @entity1 developed an @entity834 . The internally validated models, based on predictors selected from the literature, showed moderate discrimination (area under the receiver operating characteristic (ROC) curve 0  646 for 30-day mortality, 0  664 for 90-day mortality and 0  587 for @entity834 ) and good calibration. CONCLUSION: Based on available data, three case-mix adjustment models for postoperative outcomes in @entity1 undergoing curative surgery for @entity5 were developed. These models should be used for risk adjustment when assessing hospital performance in the National Health Service, and tested in other large health systems.

Risk adjustment models for short-term outcomes after surgical resection for XXXX .

@entity5 :: ('MESH:D009369', 'Disease') :: ['oesophagogastric cancer'] @entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity834 :: ('MESH:D057868', 'Disease') :: ['anastomotic leak', 'anastomotic leakage']
@entity5 :: (MESH:D009369,Disease) :: ['oesophagogastric cancer']
