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Table 3 Significant prognostic factors according to multivariate analysis

From: Post-radiation sinusitis is associated with recurrence in nasopharyngeal carcinoma patients treated with intensity-modulated radiation therapy

End point Hazard ratio (95%CI) p-value
Overall survival
 T stage T4 vs. T1–3 3.914 (1.441–10.63) 0.007
 N stage N3 vs. 0–2 4.735 (1.655–13.547) 0.004
Disease-free survival
 Gender Male vs. Female 4.537(1.392–14.792) 0.012
 T stage T4 vs. T1–3 2.705(1.359–5.384) 0.005
 N stage N3 vs. 0–2 3.425 (1.671–7.019) 0.001
 Post-radiation sinusitis Yes vs. no 3.734(1.732–8.051) 0.001
Freedom from local failure
 T stage T4 vs. T1–3 2.786(1.069–7.259) 0.036
 Post-radiation sinusitis Yes vs. no 8.9441(2.002–39.965) 0.004
Freedom from distant failure
 N stage N3 vs. 0–2 4.982 (2.149–11.552) < 0.001
 Post-radiation sinusitis Yes vs. no 2.951 (1.233–7.064) 0.015