Abstract
In a clinical investigation of observed postoperative survival, 563 patients have been registered for primary surgical treatment of colorectal cancer since 1974. The potential prognostic factors examined within the first days of hospitalization for primary resection included age of the patients, operability, location of the tumour, tumour extension and the preoperative serum CEA level. Statistical treatment of the data revealed that each of the clinical parameters except tumour location covers ranges associated with highly significant differences in survival of the patients. The preoperative serum CEA level gave prognostic information in addition to operability or tumour extension. The prognostic significance of the preoperative CEA level was still evident when selected subgroups of patients with distinct resectability and tumour extension were examined. The results indicate that the preoperative serum CEA level is an independent prognostic parameter.
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