Noise exposure and hearing status among call center operators.
PBN-AR
Instytucja
Instytut Medycyny Pracy im. prof. dr. med. Jerzego Nofera
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Noise & Health (30pkt w roku publikacji)
ISSN
1463-1741
EISSN
1998-4030
Wydawca
MEDKNOW PUBLICATIONS
DOI
URL
Rok publikacji
2018
Numer zeszytu
20
Strony od-do
178-189
Numer tomu
96
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
EN
call center
communication headset
hearing loss
noise exposure
Streszczenia
Język
EN
Treść
Abstract Introduction: The overall objective of the study was to assess noise exposure and audiometric hearing threshold levels (HTLs) in call center operators. Materials and Methods: Standard pure-tone audiometry and extended high-frequency audiometry were performed in 78 participants, aged 19 to 44 years (mean ± standard deviation: 28.1 ± 6.3 years), employed up to 12 years (2.7 ± 2.9 years) at one call center. All participants were also inquired about their communication headset usage habits, hearing-related symptoms, and risk factors for noise-induced hearing loss (NIHL). Noise exposure under headsets was evaluated using the microphone in a real ear technique as specified by ISO 11904-1:2002. The background noise prevailing in offices was also measured according to ISO 9612:2009. Results and Discussion: A personal daily noise exposure level calculated by combining headset and nonheadset work activities ranged from 68 to 79 dBA (74.7 ± 2.5 dBA). Majority (92.3%) of study participants had normal hearing in both ears (mean HTL in the frequency range of 0.25-8 kHz ≤20 dB HL). However, their HTLs in the frequency range of 0.25 to 8 kHz were worse than the expected median values for equivalent highly screened otologically normal population, whereas above 8 kHz were comparable (9-11.2 kHz) or better (12.5 kHz). High-frequency hearing loss (mean HTLs at 3, 4, and 6 kHz >20 dB HL) and speech-frequency hearing loss (mean HTLs at 0.5, 1, 2, and 4 kHz >20 dB HL) were noted in 8.3% and 6.4% of ears, respectively. High-frequency notches were found in 15.4% of analyzed audiograms. Moreover, some of call center operators reported hearing-related symptoms. Conclusions: Further studies are needed before firm conclusions concerning the risk of NIHL in this professional group can be drawn.
Cechy publikacji
oryginalny artykuł naukowy
Inne
System-identifier
PX-5c1254afd5dec0dc3d2bab27
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