Brachytherapy of stage II mobile tongue carcinoma. Prediction of local control and QOL

Radiation Oncology

Table 1 Variables and Relative Classes for 277 patients treated with linear sources

Variables	Classes	No.	%
Sex	Male	169	61
	Female	108	39
Age at diagnosis (yrs)	≤60	174	63
	> 60	103	37
Growth pattern	Superficial	81	29
	Exophytic	121	44
	Invasive	75	27
Site	Side	254	92
	Tip	1	0
	Lower	20	7
	Upper	2	1
Leukoplakia	Absent	67	24
	Present	210	76
Tumor thickness (mm)	≤5	106	38
	6–10	97	35
	11–15	40	14
	> 15	34	12
Maximum diameter (mm)	≤30	196	71
	> 30	81	29
Brachytherapy source	192Ir hairpin	104	38
	226Ra needle	162	58
	137Cs needle	11	4
Brachytherapy dose (Gy)	≤70	216	78
	> 70	61	22
Brachytherapy plane	Single	242	87
	Double	32	12
	Volume	3	1
External irradiation	+	45	16
	-	232	84

ISSN: 1748-717X