Table 2. Patient characteristics.

	IGRT	IMRT	Total
Patient No	19	8	27
Age
Median	60	68	63
Range	52–78	60–84	52–84
Sex
Male	17	8	25
Female	2	0	2
Squamous histology	19	8	27
Sites
Glottis	5	6	11
Supraglottis	14	2	16
Stages
III	11	6	17
IVA	7	2	9
IVB	1	0	1
T stages
T1	0	2	2
T2	5	2	7
T3	9	3	12
T4	5	1	6
Neck nodes
N0	12	4	16
N1	4	3	7
N2	3	1	4
Treatment
Radiotherapy alone	1	0	1
Chemoradiation	18	8	26

IGRT: Image-guided radiotherapy; IMRT: Intensity-modulated radiotherapy.