Table 2 Univariate and Multivariate Analysis for overall survival of the Training Cohort

Age

1.04 (1.03–1.06)

1.028 (1.014–1.043)

Gender

 Female

1

 Male

1.23 (0.875–1.73)

Ethnic

 Han

1

 Others

1.37 (0.94–2)

Marital status

 Married

1

 Others

0.845 (0.47–1.52)

Occupation

 Worker/clerk

1

 Self-employed/unemployed

0.979 (0.62–1.55)

 Professional and technical personnel

2.06 (1.23–3.45)

 Others

1.42 (0.934–2.16)

Stage

 I–II

1

1

 III

2.4 (1.18–4.88)

2.341 (1.145–4.786)

 IV

6.56 (3.33–12.9)

4.593 (2.281–9.248)

Pathological

 Non-keratinizing differentiation

1

1

 Non-keratinized undifferentiated

1.07 (0.794–1.440)

1.084 (0.804–1.463)

 Keratinized and others

2.27 (0.718–7.150)

3.130 (0.957–10.236)

Transfer

 No

1

 Yes

0.97 (0.580–1.620)

Radiotherapy

 No

1

1

 Yes

0.368 (0.268–0.505)

0.421 (0.268–0.662)

Chemical therapy

 No

1

1

 Yes

0.469 (0.347–0.634)

0.895 (0.581–1.380)

Targeted therapy

 No

1

 Yes

0.986 (0.699–1.390)

EBV

  < 1000

1

1

  ≥ 1000

3.01 (2.22–4.08)

1.982 (1.408–2.792)

BQ

  ≤ 0.13

1

  > 0.13

0.907 (0.581–1.420)

LAR

  ≤ 6.15

1

1

  > 6.15

4.41 (3.22–6.04)

2.009 (1.408–2.712)

NLR

  ≤ 4.84

1

1

  > 4.84

2.61 (1.83–3.71)

1.521 (1.015–2.278)

PLR

  ≤ 206.33

1

1

  > 206.33

2.35 (1.73–3.19)

1.712 (1.202–2.438)