Table 3.

 Clinical and pathological features

Characteristic
Number of patients	100
Age range (years)	24–92
Mean age (years)	56
Males	53
Females	45
Number of patients followed up	67
Follow up range (weeks)	0–284
Mean follow up (weeks)	28
Number of patients alive	50
Number of patients dead	17
Pathological data
Stage
I	1
IIA	44
IIB	10
III	40
Unknown	5
Tumour grade
Well differentiated	26
Moderately differentiated	59
Poorly differentiated	12
Unknown	3
Lymph node metastases
No	41
Yes	47
No record	12