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Kaplan-Meier plots of disease-free survival (DFS) and overall survival (OS). (A) DFS of patients. One-year DFS rate, which was the primary endpoint, was 57.9%. Median disease-free survival was 15.0 months (95% confidence interval [CI], 11.6 to 18.4). (B) OS of patients. Median OS was 33.0 months (95% CI, 21.8 to 44.2). (C) DFS according to stage (stage IIA vs. IIB). One-year DFS rate for stage IIA and IIB was 70.0% and 51.2%, respectively (p=0.006).
