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. 2007 Mar-Apr;73(2):239-44.
doi: 10.1016/s1808-8694(15)31072-7.

Occupational hearing loss in teachers: a probable diagnosis

Regina Helena Garcia Martins  1 , Elaine Lara Mendes Tavares, Arlindo C Lima Neto, Marisa P Fioravanti
Affiliations

Occupational hearing loss in teachers: a probable diagnosis

Regina Helena Garcia Martins et al. Braz J Otorhinolaryngol. 2007 Mar-Apr.

Abstract

Teachers frequently report auditory symptoms and excessive noise in classrooms, but noise level measurements are not done routinely. Study model - a prospective clinical trial.

Aim: To study auditory symptoms and audiometric exams of teachers and classroom noise levels.

Material and method: Data from two groups, GI (40 teachers) and GII (40 voluntaries) were studied as follows: age, gender, working conditions, audiometric exams, and classroom noise levels.

Results: In GI there were more females (86%), working in basic teaching (75%), in classes with 21-40 students (70%), with workloads between 26 and 40 hours per week (47%), and variable professional teaching time. Most teachers in GI reported excessive classroom noise (93.5%) and auditory symptoms (65%). In GI, 25% of teachers presented audiometric alterations (versus 10% of controls), with an acoustic notch predominating (11.25%; p<0.05). Noise levels close to 87dBA were recorded in classes at all teaching levels.

Conclusions: occupational hearing loss may occur in teachers. Further studies are needed to confirm this proposition.

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Figures

Figure 1
Figure 1
Distribution of teachers according to duration of professional work.
Figure 2
Figure 2
Results of audiometric exams of teachers (GI).
Figure 3
Figure 3
Results of audiometric exams of volunteers (GII).
See this image and copyright information in PMC

References

    1. Alberti PW. In: Tratado de Otorrinolaringologia. Filho O Lopes, CAH Campos., editors. Roca; São Paulo: 1994. Deficiência auditiva induzida pelo ruído (PAIR). pp. 934–949.
    1. Suter AH. The handbook of hearing and the effects of noise: physiology, psychology and public health. Ear and Hear. 1996;17(2):176–177.
    1. Couto HA, Santino E. Audiometrias ocupacionais: Guia prático. Ergo editora; Belo Horizonte: 1995. p. 116.
    1. Coles RRA, Lutman ME, Buffin JT. Guideliness on the diagnosis of noise-induced hearing loss for medico legal purposes. Clin Otolaryngol Allied Sci. 2000;25(4):264–273. - PubMed
    1. Oliveira CG. In: Tópicos em fonoaudiologia. 1o edição. IQ Marchesan, JL Zorzi, ICD Gomes., editors. Lovise; São Paulo: 1996. Fonoaudiologia preventiva em saúde do trabalhador. pp. 121–129. v.3.

Uncited Reference

    1. Russo ICP, Santos TMM. A prática da audiologia clínica. 4o. Ed. Cortez; S. Paulo: 1993. pág. 253.
    1. Brasil - Associação Brasileira de Normas Técnicas, ABNT; norma NBR 10152. Níveis de ruído para conforto acústico (nb95). 1990.
    1. Bovo R, Galceran M. Le disfonie disfunzionali como patologia professionale. In: Fórum Europeo de Ciência, Seguridad y Salud 3. 1998, Oviedo. Ponencia. Oviedo, 1998.
    1. Brasil Norma Regulamentadora de no 15 (NR-15) da Portaria 3.214/78 do Ministério do Trabalho e Emprego - Secretaria de Segurança e Saúde no Trabalho - Atividades e Operações Insalubres - Diário Oficial da União, Brasília, 08 de junho de 1978.