Table 3.

Other studies of radiation therapy for T1N0 glottic cancer

Author	Dose per fr	Number of fr	Total dose	Schedule	OTT	Local control rate
	(Gy)		(Gy)		(day)	(%)
Reddy et al.2)	2.0	33	66	once daily	45	89
Fein et al.8)	2.0	33	66	once daily	49	89
Yamazaki et al.9)	2.25	25	56.25	once daily	35	92
van der Voet et al.10)	2.4	25	60	once daily	35	91
Motegi et al.16)	2.4	25	60	once daily	37	93
Onimaru et al.11)	2.5	26	65	once daily	45†	91.9
Growda et al.12)	3.125	16	50	once daily	21	93
Present study	1.5	40	60	twice daily	30	97.8

fr; fraction(s), OTT; Overall treatment time, †; slightly increased overall treatment time due to the 4-weekly irradiation schedule