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  • Title: Auditory vocal analysis and factors associated with voice disorders among teachers.
    Author: de Ceballos AG, Carvalho FM, de Araújo TM, Dos Reis EJ.
    Journal: Rev Bras Epidemiol; 2011 Jun; 14(2):285-95. PubMed ID: 21655695.
    Abstract:
    UNLABELLED: Teachers are professionals who demand much of their voices and, consequently, present a high risk of developing vocal disorders during the course of employment. OBJECTIVE: To identify factors associated with vocal disorders among teachers. METHOD: An exploratory cross-sectional study, which investigated 476 teachers in primary and secondary schools in the city of Salvador, Bahia. Teachers answered a questionnaire and were submitted to auditory vocal analysis. The GRBAS was used for the diagnosis of vocal disorders. RESULTS: The study population comprised 82.8% women, teachers with an average age of 40.7 years, teachers with higher education (88.4%), with an average workday of 38 hours per week, average 11.5 years of professional practice and average monthly income of R$1.817.18. The prevalence of voice disorders was 53.6%. (255 teachers). The bivariate analysis showed statistically significant associations between vocal disorders and age above 40 years (PR = 1.83; 95% CI; 1.27-2.64), family history of dysphonia (PR = 1.72; 95% CI; 1.06-2.80), over 20 hours of weekly working hours (PR = 1.66; 95% CI; 1.09-2.52) and presence of chalk dust in the classroom (PR = 1.70; 95% CI; 1.14-2.53). CONCLUSION: The study concluded that teachers, 40 years old and over, with a family history of dysphonia, working over 20 hours weekly, and teaching in classrooms with chalk dust are more likely to develop voice disorders than others.
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