Table 2.

Vocal assessment of the three groups before the treatment.

Parameter	VT group ($\overline{x}\pm s$)	VM group ($\overline{x}\pm s$)	p
F	9.08 ± 6.94	9.26 ± 8.1	0.922
P	16.03 ± 9.47	18.55 ± 8.57	0.255
E	7.13 ± 8.14	9.13 ± 10.03	0.364
T	30.92 ± 22.48	36.61 ± 25.27	0.326
MPT (s)	16.62 ± 3.47	17.28 ± 3.52	0.441
Jitter (%)	1.41 ± 0.73	1.51 ± 0.63	0.561
F0-High (Hz)	397.66 ± 47.26	375.9 ± 59.35	0.095
I-Low (dB)	56.71 ± 3.42	58.06 ± 4.03	0.136
DSI	0.28 ± 1.18	−0.22 ± 1.43	0.117