Table 1

Patient and tumor characteristics

Variable

No.

%


Age (years)

Median 57 (range 38-74)

Gender

Male

41

82

Female

9

18

Primary site

Nasopharynx

25

50

Oropharynx

12

24

Hypopharynx

9

18

Larynx

4

8

T classification

1

14

28

2

19

38

3

8

16

4

9

18

N classification

1

12

24

2

30

60

3

8

16

Stage

2

7

14

3

14

28

4

29

58

Histology

Squamous cell carcinoma

25

50

Nonkeratinizing undifferentiated carcinoma

22

44

Nonkeratinizing differentiated carcinoma

1

2

Keratinizing squamous cell carcinoma

2

4

Differentiation

Well differentiated

3

6

Moderate differentiated

8

16

Poorly differentiated

6

12

Undifferentiated

22

44

Not available

11

22

Initial maximal lymph node size (cm)

Median 2 (range 1-7)


Jang et al. BMC Cancer 2012 12:59   doi:10.1186/1471-2407-12-59

Open Data