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Fig. 2 | BMC Surgery

Fig. 2

From: Survival after initial lung metastasectomy for metastatic colorectal cancer in the modern chemotherapeutic era

Fig. 2

Survival analysis for (a) overall survival (OS) and (b) disease-free survival (DFS) based on the presence of identified risk factors. a Patients with both of the poor prognostic factors for OS (serum carcinoembryonic antigen ≥ 5.0 ng/mL before initial lung metastasectomy and disease-free interval < 24 months after colorectal cancer resection) experienced a significantly shorter OS than those with only 1 risk factor (P = 0.039) or no risk factors (P < 0.001), although the difference between those with 1 risk factor and no risk factors did not reach statistical significance (P = 0.066). b Patients who have both risk factors for recurrence (colorectal cancer with N2 stage disease and disease-free interval < 24 months after colorectal cancer resection) had a shorter DFS than those with 1 risk factor (P = 0.004) or no risk factors (P < 0.001). Patients with 1 risk factor also showed a worse DFS than those with no risk factors (P = 0.036)

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