Acupuncture Combined with Voice Training Improved Voice Function in Patients with Primary Muscular Tension Dysphonia (MTD): A Randomized, Three-Armed, Open-Label Clinical Trial
Table 7
Comparison of the acoustic voice parameters before and after treatment in the 3 MTD groups (x ± s).
Group
Course
Sample
Jitter (%)
Shimmer (%)
MPT (s)
DSI
Test
Before treatment
35
1.12 ± 0.28
4.96 ± 0.601
9.55 ± 3.43
−2.08 ± 1.24
After treatment
35
0.49 ± 0.08
3.07 ± 0.63
17.18 ± 2.87
1.89 ± 0.48
Control 1
Before treatment
32
1.06 ± 0.14
5.01 ± 0.61
9.33 ± 2.98
−1.74 ± 1.39
After treatment
32
0.65 ± 0.12a
3.67 ± 0.46a
11.60 ± 2.30a
1.07 ± 0.65a
Control 2
Before treatment
34
1.04 ± 0.19
5.01 ± 0.69
9.90 ± 3.58
−1.86 ± 1.34
After treatment
34
0.56 ± 0.12a,b
3.36 ± 0.54a,b
15.45 ± 2.22a,b
1.41 ± 0.70a,b
Note. Compared with this group before treatment, ; compared with the test group, ; and compared with control group 1, .
