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. 2016 May;28(86):215–219.

Table 3.

Postoperative voice quality outcomes

Variable Baseline
Mean (SD)
1 month follow-up
Mean (SD)
6–12 month follow-up
Mean (SD)
Maximum phonation time (s)
Jitter (%)
Shimmer (dB)
2.7 (1.3)
2.4 (1.4)
6.8 (3.2)
6.4 (2.4)
0.7 (0.7)
3.8 (1.6)
7.6 (1.8)
0.5 (0.3)
4.0 (1.5)

Significant different among 1 and 12-month follow-up (P<.001,General Linear Model, Repeated Measure ANOVA test)