Table 2.

Data referring to subjective acoustic analysis (VHI).

Study	Transoral surgery		Radiotherapy
	n	mean ± SD	n	mean ± SD
Loughran et al.23	15	25,4 ± 24,7	18	22,2 ± 24,6
Sjogrenet al.11	18	17,6 ± 8,0	15	19,2 ± 11,0
Peeters et al.24	52	18	40	12
Laoufi et al.25	43	13	30	29
Goor et al.26	42	10,6	23	17,1
Kono et al.9	37	12,6 ± 3,2	27	29,3 ± 4,9