Figure 2.

Differences in local control according to tumor sizes and the primary tumor location. (A) The 1- and 2-year local control rates were 85.9 and 73.6% for patients with tumors ≤30 mm, 50.4 and 10.5% for patients with tumors measuring 30–50 mm and 71.4 and 26.8% for patient with tumors >50 mm, respectively. A significant difference in local control rates was observed among the three groups (P=0.0174). In the two-group analyses, the P-values were P=0.0053 (≤30 vs. 30–50 mm), P=0.0869 (≤30 vs. >50 mm) and P=0.4148 (30–50 vs. >50 mm). (B) The 1-year local control rates were 30.0, 85.6 and 60.0% in liver metastases from the right-sided colon, left-sided colon and rectum, respectively. A significant difference was observed among the three groups (P=0.0115). In the two-group analyses, the P-values were P=0.0043 (rectum vs. left-sided colon), P=0.7001 (rectum vs. right-sided colon) and P=0.0608 (right-sided vs. left-sided colon).