DOI: 10.5279/dk-sa-dda-800
title: Erhvervsbetinget støjpåvirkning, 1979
title: Occupational Exposure to Noise, 1979

description: Undersøgelsen belyser subjektive symptomer på støjskade samt brug af høreværn og evt. problemer hermed blandt ansatte på en støjende industrivirksomhed. Der er tale om en tværsnitsundersøgelse med spørgeskemauddeling til et tilfældigt udsnit af de 1575 ansatte (heraf var 1206 arbejdere og 369 funktionærer) på en fremstillingsvirksomhed i metalindustrien.     #Funktionærgruppen var mindre støjeksponeret end arbejdergruppen. 119 af de undersøgte arbejdere var ansat i stærk støj (90-98 dB(A)), 132 i mindre stærk støj (90 dB(A) eller mindre).     #Arbejdergruppen blev ved en stratificeret analyse sammenlignet med funktionærgruppen (stratifikation med hensyn til alder og ansættelsestid). Signifikant flere arbejdere havde symptomer på subjektiv hørenedsættelse i form af problemer med at følge med i en samtale, når flere var samlet, samt havde behov for højere styrke på radio og TV. Flere arbejdere oplevede støjen generende og oplevede en forbedring af hørelsen i weekenden.     #Arbejdere i stærk støj havde, sammenlignet med arbejdere i mindre støj, hyppigere symptomer på subjektiv hørenedsættelse. Ringen eller susen for ørerne efter fyraften var hyppigere blandt arbejderne, og signifikant hyppigere blandt arbejdere der havde været ansat i mindre end otte år.     #47% af arbejderne i stærk støj (90-98 dB(A)) anvendte altid høreværn; blandt arbejdere i mindre støj (LE 90 dB(A)) anvendte 15% altid høreværn. Personer, der var informeret om høreværn, og som var instrueret i brugen af det, anvendte hyppigere altid høreværn. Det samme var tilfældet blandt personer, som oplevede støjen generende, og blandt personer med symptomer på nedsat hørelse.     #Blandt ansatte, som ikke altid brugte høreværn (n=169), angav 50% ingen grund, 25% angav, at høreværnet generede, 13% at det forhindrede samtale, og 10% at det forhindrede dem i at følge med i arbejdsprocessen
description: The survey examines subjective symptoms of reduced hearing, the use of hearing protectors and problems in connection with this among employees in a noisy industrial trade. The survey is a cross-sectional investigation of a plant in the metal industry with 1575 employees (1206 workers and 369 officials). A total of 350 questionnaires were handed out at random to the employees. Replies were obtained from 93% (251 workers and 76 officials).     #The group of officials was less exposed to noise than the group of workers. 119 workers worked in a very noisy environment (90-98 dB(A)) and 132 worked in a less noisy environment (90 dB(A) or less).     #By means of a stratified analysis, the group of workers was compared with the group of officials (stratification according to age and duration of employment). A significantly larger number of workers had symptoms of subjective reduction in hearing (difficulty in following a conversation when many people talked together, and they required higher sound intensity when listening to the radio or watching TV). Many of the workers found the noise uncomfortable and found that their hearing improved during weekends.     #Workers exposed to intense noise more frequently experienced subjective reduction in hearing than workers exposed to less noise. Ringing or buzzing in the ears after the end of the working day were more common in the former group and significantly more common among workers who had been employed for less than eight years.     #47% of the workers working in a very noisy environment (90-98 dB(A)) always used hearing protectors; among workers in the less noisy environment (LE 90 dB(A)) 15% always used hearing protectors. The use of hearing protectors was more common among workers who knew about the advantages of hearing protectors and who had been instructed in using them. This was also true among workers who found the noise uncomfortable and among workers with symptoms of reduced hearing.     #Among employees not always using hearing protectors (n=169), 25% stated that the hearing protectors were uncomfortable, 13% stated that hearing protectors made it impossible to talk together and 10% stated that it slowed their work. 50% gave no reasons for not using hearing protectors
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