Revista Brasileira de Epidemiologia
versión impresa ISSN 1415-790X
CEBALLOS, Albanita Gomes da Costa de; CARVALHO, Fernando Martins; ARAUJO, Tânia Maria de y REIS, Eduardo José Farias Borges dos. Auditory vocal analysis and factors associated with voice disorders among teachers. Rev. bras. epidemiol. [online]. 2011, vol.14, n.2, pp. 285-295. ISSN 1415-790X. http://dx.doi.org/10.1590/S1415-790X2011000200010.
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.
Palabras llave : Occupational health; Dysphonia; Voice disorders; Education; Teaching; Teacher.