Fig 1.
Flowchart of patients enrolled in this study.
Table 1.
Characteristics of patients with recurrent or metastatic nasopharyngeal carcinoma after definitive radiotherapy.
Fig 2.
Kaplan–Meier estimates of overall survival between patients with locoregional recurrence and those with distant recurrence.
Table 2.
Univariate and multivariate analyses of factors associated with survival in a cohort of 107 recurrent nasopharyngeal carcinoma patients after definitive radiotherapy.
Table 3.
Univariate and multivariate analyses of factors associated with survival in a cohort of 87 metastatic nasopharyngeal carcinoma patients with or without recurrence after definitive radiotherapy.
Fig 3.
Kaplan–Meier estimates of overall survival according to the locoregional SUVmax or the plasma EBV DNA concentration in locoregional recurrent patients.
Fig 4.
Kaplan–Meier estimates of overall survival according to the distant SUVmax or the plasma EBV DNA concentration in distant recurrent patients.