Causes and consequences of voice disorders among teachers

Abstract

Abstract Voice disorders are a major problem among teachers. However, the reported prevalence of these disorders have a wide range, and the natural variation of voice disorders among teachers is unknown due to the lack of longitudinal studies. Moreover, there is not a consensus about the best approach for assessing voice disorders among teachers at work. Results on prevalence of voice disorders in this occupational group are based on different sources (questionnaires, perceptual assessment, clinical assessment, acoustical assessment), which make difficult the comparison of these results. On the other hand, associated factors of voice disorders among teachers include individual factors, such as sex and age; and work-r