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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