Objectives: Voice is the one of the sexual maturation characteristics that differs between boys and girls. Voice analysis is a non-invasive diagnostic tool and well-tolerated by children. Our aim is to investigate the capability of MDVP to predict precocious puberty (PP). To our knowledge, this is the only study to assess the voice parameters in the diagnosis of PP.
Material and methods: The data of PP and control group were retrospectively reviewed. Voice parameters including fundamental frequency, jitter, shimmer and harmonic-to-noise ratio (HNR), age, and gender of subjects were noted. ROC curve was performed to the statistically significant parameters after double group comparisons and cut-off values were defined. 2 × 2 table were created and compared between the groups.
Results: A total of 54 children comprising 32 subjects (8 boys and 24 girls) in the PP group and 22 (10 boys and 12 girls) in the control group were included, and the mean age of girls were 8.17 and 7.92 years, and those of the boys were 8.83 and 7.90, respectively. Jitter and HNR values were statistically significant in the girls but not in boys between the 2 groups (P = 0.013, P = 0.032, respectively). The cut-off points were 1.31 for jitter, 6.39 for HNR. Univariate analysis according to cut-off values of jitter and HNR revealed a statistically significant difference between the 2 groups (P = 0.004, OR: 8.80 [1.26- 61,15] and P = 0.012, OR: 5.00 [1.27-19.68], respectively).
Conclusions: Our findings suggest that, along with an evaluation of other secondary sexual maturation characteristics, voice analysis may be used by pediatric endocrinologists and otolaryngologists to diagnose PP in girls but not in boys.
Keywords: Acoustic analysis— Children— Precocious puberty— Voice disorders.
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