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Table 6 Overall survival of the patients with colorectal cancer grouped by CEA levels

From: Palliative primary tumor resection provides survival benefits for the patients with metastatic colorectal cancer and low circulating levels of dehydrogenase and carcinoembryonic antigen

CEA level (ng/mL) Overall survival (months) P
PPTR group Non-PPTR group
0–5 26.13 (2.80–86.73) 16.83 (2.80–64.50) 0.032
5.1–18 20.90 (2.77–70.30) 14.80 (5.73–41.33) 0.011
18.1–70 19.70 (2.87–63.17) 11.85 (2.33–36.63) 0.002
>70 19.57 (4.70–73.33) 14.17 (3.47–44.43) 0.186
  1. Each value is presented as median followed by range in parentheses
  2. The overall survival was compared between PPTR and non-PPTR group, and the differences were analyzed using the log-rank test
  3. CEA carcinoembryonic antigen, PPTR palliative primary tumor resection