How is data from Wales submitted to NBOCA?

The Audit receives an upload of colorectal cancers diagnosed and managed in Wales centrally from the Cancer Network Information System Cymru (CaNISC) system. In England the Audit dataset is linked to HES data at the patient level to obtain further information on patient care and follow-up. The equivalent data for Wales is called Patient Episode Data Wales (PEDW) and has been used in the 2017 annual report.