The Role of Narrow Band Imaging in the Detection of Recurrent Laryngeal and Hypopharyngeal Cancer after Curative Radiotherapy

Table 2

Clinical characteristics of the study cohort.

Demography	Patients number (%)
Age, mean, range	62.6 yrs, 42–83
Sex
Male	44 (66.7)
Female	12 (33.3)
Primary tumor site
Glottis	56 (85)
T1	35 (62.5)
T2	14 (25)
T3	7 (12.5)
T4	0 (0)
Supraglottis	5 (8.9)
T1	1 (20)
T2	2 (40)
T3	2 (40)
T4	0 (0)
Subglottis	1 (1.8)
T1	1 (100)
Hypopharynx	4 (7.1)
T1	1 (25)
T2	3 (75)
T3	0 (0)
T4	0 (0)
Prior surgery
Yes	13 (19.7)
No	53 (80.3)