Article by Orouba Almilaji, Linda Sharples, Ajay Aggarwal, David Cromwell, Kieran Horgan, Michael Braun, Robert Arnott, Julie Nossiter, Angela Kuryba, Alexandra Lewin, Brian Rous, Thomas Cowling, Jan Van Der Meulen & Kate Walker
Abstract
Routinely collected data are increasingly being used for cancer research and health service evaluation. For both purposes, accurately identifying metastatic disease at diagnosis is essential. We developed an approach to identify metastatic disease at time of primary diagnosis according to national hospital administrative data (HAD) in patients identified with colorectal cancer (CRC) in the English national cancer registry (CR)…