Table 2 Univariate and multivariate analyses of prognostic factors for distant metastasis-free survival of patients with N1 nasopharyngeal carcinoma

1.29 (0.79–2.10)

0.314

1.17 (0.67–1.89)

0.571

0.64 (0.35–1.17)

0.148

0.75 (0.61–1.45)

0.795

2.01 (1.05–3.84)

0.035

2.42 (0.69–2.92)

0.334

3.02 (1.84–4.97)

< 0.001

2.22 (1.29–3.82)

0.004

4.61 (2.60–8.15)

< 0.001

3.24 (1.97–5.61)

< 0.001

3.05 (0.73–12.81)

0.128

2.12 (0.67–7.87)

0.697

5.23 (3.14–8.69)

< 0.001

4.17 (2.34–7.59)

< 0.001