Clinical Study

Involved-Field Radiotherapy versus Elective Nodal Irradiation in Combination with Concurrent Chemotherapy for Locally Advanced Non-Small Cell Lung Cancer: A Prospective Randomized Study

Figure 2

Overall survival curves for patients with IFRT or ENI. The 1-, 2-, and 3-year overall survival rates in the IFRT arm were 80.0%, 53.3%, and 36.6% compared with 70.4%, 34.9%, and 30.3%, respectively, in the ENI arm. There was no statistically significant difference in local progression-free survival between the two arms ( ).
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