Table 1: Patient characteristics.

characteristic

 

number

total

sex

male

female

 

93

15 (16%)

age

30-40

40-49

50-59

60-69

>70

median (range)

 

 

 

 

 

57 (35-75)

4

12

50

36

6

 

WHO performance status

0

1

 

106

2

ACE-27 comorbidity index

0

1

2

3

 

69

35

4

0

primary site

oral cavity *

oropharynx

            soft palate

            tonsil †

            tongue base

            ant surface epiglottis

            oropharynx unspecified

hypopharynx

            pyriform fossa

            postcricoid

            hypopharynx unspecified

larynx  

            supraglottis

            glottis

unknown primary

 

 

2

30

39

1

6

 

4

2

2

 

2

12

4 (3.7%)

78 (72.2%)

 

 

 

 

 

8 (7.4%)

 

 

 

14 (13.0%)

 

 

4 (3.7%)

histology

squamous

basaloid squamous

adenosquamous

undifferentiated

 

98

8

1

1

grade

well differentiated

moderately differentiated

poorly differentiated

undifferentiated

not graded

 

2

43

60

1

2

tumour stage

T0-3

T4

 

17

91 (84%)

nodal involvement

N0

N1

N2

N3

 

21

11

63 (58%)

13

P16

positive

negative

unknown

 

33

12

63

* includes one patient with recurrent floor of mouth cancer.

† includes two patients with a previously treated tonsillar cancer in the same area 10 and 12 years previously.