Table 1. Characteristics of 54 patients with head and neck squamous cell carcinomas.

Characteristics	#	%
Male	38	70
Female	16	30
Median age at diagnosis (y)
Male	57 (43–75)
Female	63 (29–86)
Median follow-up (mo)	25 (1–62)
Anatomic sites
Oral cavity	21	39
Oropharynx	14	26
Hypopharynx	9	17
Larynx	10	18
Clinical stage
Tl	4	7
T2	13	24
T3	12	22
T4	25	47
Nodal status
NO	18	33
N1	4	7
N2	29	54
N3	3	6
Differentiation stage a
High	14	26
Moderate	18	34
Low	21	40
Treatment
S	14	26
RT	5	9
CT+RT	16	30
S+RT	10	18
S+RT+CT	9	17

^aFor one patient the information was not available.

y: years, mo: months, CT: chemotherapy, RT: radiotherapy, S: surgery.