Table 3.

Patients’ characteristics

Variable	Total (n = 115)
Age : mean ± SD	65.1 ± 11.0
Sex: Male/female	93/22
Primary site
Oropharyngeal	25(21.7%)
Hypopharyngeal	25(21.7%)
Laryngeal	23(20%)
Oral cavity	31(27%)
Nasal cavity	11(9.6%)
Tumor grade:	45(39.1%)/48(41.7%)/22(19.1%)
well/ moderate/poor
T stage: T1/T2/T3/T4	16/45/27/27
	(13.9%/39.1%/23.5%/23.5%)
N stage: N0/N1/N2/N3	59/17/39/0
	(51.3%/14.8%/33.9%/0%)
Stage: I/II/III/IV	12/23/26/54
	(10.4%/20%/22.6%/47.0%)

115 patients were obtained in this study. The patient characteristics are listed.