Table 2.

Treatment of first failures after initial therapy depending on T-category

pT4	No.	Loc. rec. no.	Locoreg. rec. No.	Late metastasis no.	Rec. metastasis no.	Σ
Glottic	31	9 (29 %)	1 (3 %)	1 (3 %)	0	11
Supraglottic	48	12 (25 %)	1 (2 %)	1 (2 %)	2 (4 %)	16