Which patients were included in surgeon number of cases for 2018 Clinical Outcomes Publication?

The number of elective or scheduled (i.e. planned) major resections for bowel cancer performed on or before 31 October 2017 by the named surgeon, on patients diagnosed between 1 April 2012 and 31 March 2017 (regardless of curative intent).
Patients under 18, those with cancer of the appendix, those with missing date of surgery or date of surgery after date of death, and those for whom ONS mortality data was unavailable were excluded.