Noise as a risk factor in school facilities
Authors:
P. Sachová 2; E. Mrázková 1,2; M. Menzlová 2; K. Richterová 2; R. Sachová 4; V. Janout 2,3
Authors‘ workplace:
Klinika pracovního a preventivního lékařství FN Ostrava, přednostka MUDr. Zdeňka Hajduková, Ph. D.
1; Ústav epidemiologie a ochrany veřejného zdraví FZS OU Ostrava
vedoucí prof. MUDr. Vladimír Janout, CSc.
2; Ústav preventivního lékařství LF Univerzity Palackého v Olomouci
přednostka doc. MUDr. Helena Kollárová, Ph. D.
3; Katedra algebry, Matematicko-fyzikální fakulta Univerzity Karlovy v Praze
vedoucí doc. RNDr. Jiří Tůma, DrSc.
4
Published in:
Pracov. Lék., 61, 2009, No. 4, s. 182-187.
Category:
Original Papers
Overview
The aim of the study was to find out the difference between the noise load in teachers teaching noisy and quiet subjects at primary schools and kindergartens in Karviná. The quality of hearing was examined using screening tone audiometry, the examination was accompanied by an original questionnaire. The whole sample was divided into two categories (noisy and quiet) in relation to exposure to noise during the classes. Results were evaluated using average audiograms, hearing losses according to Fowler, biological risk assessment and statistical analyses.
The hypothesis of the study was confirmed. Teachers of a noisy category have nearly twofold hearing loss compared to teachers teaching more quiet subjects. The hearing loss in the noisy category was 0.79 dB, in a quiet one 0.49 dB. The quality of hearing is deteriorating in relation to length of practice faster in a noisy category.
The authors recommend considering implementation of regular audiological examinations in teachers since preventive measures are quite limited. The society should focus on lowering the communal noise and the noise in school environment.
Key words:
teacher, length of practice, noise, noisy and quiet category, tone audiometry, hearing loss
Sources
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Labels
Hygiene and epidemiology Hyperbaric medicine Occupational medicineArticle was published in
Occupational Medicine
2009 Issue 4
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