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What is Child Phonation Time and s/z Ratio Study about?

This study aimed to establish normal values for maximum phonation time (MPT) and s/z ratio in 1660 children aged 4-12 years without vocal symptoms. The average MPT was found to increase with age, ranging from 6.09 seconds in the youngest group to 8.98 seconds in the oldest, while the s/z ratio was generally near 1.0, indicating normal vocal function. These findings provide normative data that can be utilized in future pediatric voice assessments.

Author

Erlinda Ricardo

Language

EN