Abstract
Validation of a classification to stratify presbylarynx into three types. Evaluate the reproducibility of this classification. 30 video recordings of rigid laryngostroboscopies were presented to 20 otorhinolaryngologists from five tertiary hospitals: 10 residents and 10 specialists. Specialists with different differentiations were included. Among 1200 evaluations performed (30 video recordings × 20 raters, twice), average intra-rater agreement rate was 0.847 (p < 0.001). The average inter-rater reliability was 0.67 ± 0.179 on the first evaluation, and 0.691 ± 0.131 on the second evaluation. This study presented the validation of a classification that allows stratifying laryngeal endoscopic signs in elderly patients with presbyphonia. We believe that this classification will enrich the diagnostic protocol of the aging voice and will improve the documentation of treatment outcomes.
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