Comparison of Sensory–Neural Hearing between Firefighters and Office Workers

Background: rescuer systems personnel such as firefighters haveimportance in health assessment. because of stressful situation,chemicals, metals, gases and noises, they need many physical andparaclinic examination such as audiometry in periodic examinations.comparison of sensory – neural hearing between firefighters andoffice workers.methods: a cross?sectional study had been done on firefightersand office workers with use of the clinical – health issues. data hadbeen analyzed in spss 11.5 by t?test and chi?2 with significancelevel of p < 0.05.results: mean of hearing threshold in firefighters’ right ear in4000, 6000, 8000 hz was 16.05±8.66 db and in office workerswas 15.20±6.47 db with t=0.786 and p=0.433 had no significantdifference, this mean in firefighters’ left ear was 16.17±8.12 db andin office workers was 15.52±6.67 db with t=0.617 and p=0.538had no significant difference too. mean of hearing threshold infirefighters’ right ear in age 40 or less than it in 4000 hz was20.51±10.11 db and in office workers was 17.50±5.28 db witht=2.153 and p=0.033 had significant difference.conclusion: mean of hearing threshold in firefighters in allfrequencies was normal, except 4000 frequency. it showed theearly effect of occupational exposure on hearing.