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Table 3 Five-year survival rates for N0 nasopharyngeal carcinoma patients according to different T-classifications of the seventh edition of AJCC staging system

From: Promising treatment outcomes of intensity-modulated radiation therapy for nasopharyngeal carcinoma patients with N0 disease according to the seventh edition of the AJCC staging system

Stage Death Local recurrence Distant metastasis
  Event/N 5-year OS (%) Event/N 5-year LRFS (%) Event/N 5-year DMFS (%)
T1N0 1/60 97.8 0/60 100 2/60 96.6
T2N0 0/16 100 1/16 92.9 1/16 90.9
T3N0 1/16 93.8 0/16 100 0/16 100
T4N0 4/18 76.9 2/18 88.9 1/18 93.3
  1. OS, overall survival; LRFS, local relapse-free survival; DMFS, distant metastasis-free survival