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Kaplan-Meier survival curves of (A) RFS, (B) overall survival(OS), and (C) distant metastasis free survival (DMFS) based on high NLR after RT. (A) patients with high NLR after RT showed a lower RFS (HR 2.915; 95% CI 1.731–4.909, p < 0.0001), (B) patients with high NLR after RT showed a lower OS (HR 2.64; 95% CI 1.306–5.339, p = 0.0037), and (C) patients with high NLR after RT showed a lower DMFS (HR 2.889; 95% CI 1.653–5.049, p < 0.0001).
