Table 1. Patient characteristics.

Characteristic	Number of patients, N=37 (%)
Age (years)
Median (range)	61 (35–75)
Male/female	31 (83.8)/6 (16.2)
ECOG performance status
1	33 (89.2)
2	4 (10.8)
Site of primary tumour
Oral cavity	6 (16.2)
Oropharynx	11 (29.7)
Hypopharynx	8 (21.6)
Larynx	3 (8.1)
Paranasal sinus	3 (8.1)
Nasopharynx	6 (16.2)
Histologic classification
Well differentiated	8 (21.6)
Moderately differentiated	10 (27.0)
Poorly or undifferentiated	11 (29.7)
Unspecified	8 (21.6)
Stage
III	22 (59.5)
IV	15 (40.5)
T classification
T1	3 (8.1)
T2	15 (40.5)
T3	13 (35.1)
T4	6 (16.2)
N classification
N0	9 (24.3)
N1	12 (32.4)
N2	15 (40.5)
N3	1 (2.7)