| Titre : | Five-Year Longitudinal Cohort Study Determines the Critical Intervals for Periodic Audiometric Testing Based on 5070 Tests of Metallurgical Workers Exposed and Nonexposed to Noise (2022) |
| Auteurs : | Vagner Antonio Rodrigues Silva ; Alexandre Caixeta Guimaraes ; Joel Lavinsky ; Henrique Furlan Pauna ; Alexandre Scalli Mathias Duarte ; Arthur Menino Castilho ; Carlos Takahiro Chone ; Agricio Nubiato Crespo |
| Type de document : | Article |
| Dans : | Ear and hearing (Vol.43, n°1, Janvier-février 2022) |
| Article en page(s) : | p. 81-89 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Audiométrie ; Bruit au travail ; Surdité due au bruit |
| Résumé : |
Objectives: To compare the progression of 3-, 4-, and 6-kHz thresholds (pure-tone average) over 5 years and determine the most critical period for occupational risk among workers exposed and nonexposed to noise.
Design: Metallurgical workers were divided into 2 groups: noise-exposed and non-noise-exposed groups. The 6 initial audiometric tests of each worker were analyzed as baseline test and annual tests 1 to 5. Results: A total of 845 workers were included, 748 in the noise-exposed group and 97 in the non-noise-exposed group, resulting in 5070 tests analyzed. The nonexposed group showed no significant difference in the mean pure-tone averages between any of the annual tests in either ear. In the exposed group, a significant difference was observed in mean pure-tone averages between baseline and Test1 (p = 0.001 right ear; p = 0.001 left ear), between Test3 and Test4 (p = 0.002 right ear; p = 0.005 left ear), and between Test4 and Test5 (p = 0.003 right ear; p = 0.001 left ear). There was no difference between Test1 and Test2 or between Test2 and Test3 in either ear. Conclusions: The progression of pure-tone averages at 3, 4, and 6 kHz differed between workers exposed and nonexposed to noise. Noise-exposed workers had a significant progressive worsening of audiometric thresholds after 3 years of employment. This study identified, in an unprecedented way, two critical periods of noise exposure: in the first year and after the third year of employment in a noisy environment. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://journals.lww.com/ear-hearing/fulltext/2022/01000/five_year_longitudinal_cohort_study_determines_the.9.aspx |
Bibliothèques HE Vinci
