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Table 5 Multivariate analysis predicting 5-year OS rate

From: Tumor volume is an independent prognostic indicator of local control in nasopharyngeal carcinoma patients treated with intensity-modulated radiotherapy

Prognostic factors Hazard ratio 95% CI P value
Sex 1.360 0.772-2.396 0.288
Year 0.938 0.599-1.471 0.781
TV 1.393 0.802-2.417 0.239
NV 1.480 0.883-2.482 0.137
T stage 1.670 0.997-2.796 0.239
N stage 1.662 1.048-2.635 0.031
Chemotherapy 2.360 1.498-3.717 0.000