Which patients are included in trust case ascertainment for 2018 Clinical Outcomes Publication?

Case ascertainment is expressed as a percentage of the number of bowel cancer patients reported to the audit by the named trust with a date of diagnosis of bowel cancer between 1 April 2016 and 31 March 2017, compared to the number of patients admitted for the first time to the named trust according to Hospital Episode Statistics (HES) data.