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Comparing survival outcomes for patients with colorectal cancer treated in public and private hospitals

Cameron Platell, Melinda Morris and Barry Iacopetta
Med J Aust 2007; 187 (4): 250-251.
Published online: 20 August 2007

In reply: The first issue is whether we accurately identified patients with stage IV disease, as the incidence in our study was only 11% and the anticipated incidence is normally 20%–25%. We agree that simply reviewing pathology reports would tend to underdiagnose stage IV disease. However, all patients were crosschecked to the linked database to see if they had had a computed tomography scan or ultrasound image showing metastatic disease. In addition, we only reviewed patients whose primary cancer was resected. This excluded about a third of all the patients with stage IV disease. In my (C P) own surgical prospective colorectal cancer database of 781 patients, (1996 to 2007), 24% of the 185 referred with colorectal cancer had stage IV disease (private hospital patients, 21% v public hospital patients, 25%). Resection of the primary cancer was only undertaken in 126 of the 185 patients with stage IV disease (68%). Therefore, only 16% of all patients with colorectal cancer who had resections had stage IV disease (126/781).

  • Cameron Platell
  • Melinda Morris
  • Barry Iacopetta

  • School of Surgery and Pathology, University of Western Australia, Perth, WA.


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