Zexiang Li, Wei Du, Yongtao Shi, Wei Li, Chao Gao
A bi-directional segmentation method for prostate ultrasound images under semantic constraints
Scientific reports
excessive occupational exposure noise results wellrecognized occupational hearing loss prevalent many workplaces taken global problem therefore study aims assess prevalence noiseinduced hearing loss associated factors among workers bishoftu central air base ethiopia institutionalbased crosssectional study conducted among 260 central air base workers facetoface interviews environment noise survey audiometric test data collection data entered epidata version 31 spss used analyze data finally statistical analysis descriptive binary logistic regression analysis applied pvalue 005 95 ci considered statistically significant overall prevalence noiseinduced hearing loss hearing impairments 246 309 respectively highest prevalence noiseinduced hearing loss recorded workers exposed noise levels greater 90 dba 132 workers exposed average noise level 75 db 5 workers affected noiseinduced hearing loss 128 workers exposed average noise level equal greater 90 db 196 workers identified noiseinduced hearing loss regarding sex around 219 male workers identified noiseinduced hearing loss workers exposed high noise level workplace previously central air base workplace five times aor 50 95 ci 1741436 likely affected noiseinduced hearing loss workers previously exposed workers exposed greater equal 90dba noise level 498 times aor 498 95 ci 259958 likely exposed noiseinduced levels exposed less 90dba noise level moreover male air base workers 35 times likely exposed hearing impairment female workers aor 35 95 ci 101120 study identified prevalence noiseinduced hearing loss hearing impairments significantly high implementation hearing conservation program giving noise education supplying adequate hearing protective devices hpds essentials