Table 6 Univariate Cox proportional hazard regression analysis of clinicopathological features and immunological markers with disease-free survival (DFS) or overall survival (OS) in subgroup of undifferentiated WHO type III LA-NPC patients (n = 58)

 High

29 (83)^♣

6 (17)

1

33 (94)

2 (6)

1

 Low

13 (56)

10 (44)

3.1

1.1–9.1

0.029

17 (74)

6 (26)

4.3

1–29.6

0.075

 High

32 (89)

4 (11)

1

35 (97)

1 (3)

1

 Low

10 (45)

12 (55)

7.2

2.5–25.7

< 0.001

15 (68)

7 (32)

17.3

3.0–324.4

0.008

 High

35 (83)

7 (17)

1

40 (95)

2 (5)

1

 Low

7 (44)

9 (56)

4.3

1.6–11.9

0.004

10 (62)

6 (38)

7.5

1.7–51.3

0.014

 Positive (≥ 10%)

32 (76)

10 (24)

1

39 (93)

3 (7)

1

 Negative (<  10%)

10 (63)

6 (37)

1.7

0.6–4.5

0.313

11 (69)

5 (31)

6.1

1.3–42.7

0.031