Factors Predicting Dysphonia in Professional Voice Users

Area of Science:

• Occupational Health
• Laryngology
• Speech-Language Pathology

Background:

• Dysphonia, a laryngeal disorder, affects professional voice users.
• Understanding predictive factors is crucial for prevention and management.

Purpose of the Study:

• To identify organizational, environmental, and personal factors predicting dysphonia in professional voice users.
• To analyze the contribution of these factors in a predictive model.

Main Methods:

• Cross-sectional documentary study.
• 128 professional voice users (104 female, 24 male; mean age 39.3 years).
• Logistic regression, ROC curve, odds ratio, and probability estimation for data analysis.

Main Results:

• Low humidity and high phone call volume were associated with a lower likelihood of dysphonia.
• Excessive vocal demand and talking with effort were associated with a higher likelihood of dysphonia.
• The predictive model achieved 80.8% accuracy.

Conclusions:

• Low humidity and frequent phone use act as protective factors against dysphonia.
• Excessive vocal demand and vocal strain are significant risk factors for dysphonia.
• Accurate prediction of dysphonia is possible using identified contributing factors.