Author/Authors :
Assadi، Seyedeh Negar نويسنده Department of Environmental Health, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran , , Esmaily، Habibollah نويسنده Health Sciences Research Center, Department of Biostatistics and Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, I. R , , Mostaan، Leila نويسنده Department of Otolaryngology, School of Medicine, Mashhad University of Medical Sciences, Mashhad ,
Abstract :
Background: Rescuer systems personnel such as firefighters have
importance in health assessment. Because of stressful situation,
chemicals, metals, gases and noises, they need many physical and
paraclinic examination such as audiometry in periodic examinations.
Comparison of sensory – neural hearing between firefighters and
office workers.
Methods: A cross?sectional study had been done on firefighters
and office workers with use of the clinical – health issues. Data had
been analyzed in SPSS 11.5 by T?test and Chi?2 with significance
level of P < 0.05.
Results: Mean of hearing threshold in firefighters’ right ear in
4000, 6000, 8000 Hz was 16.05±8.66 dB and in office workers
was 15.20±6.47 dB with t=0.786 and P=0.433 had no significant
difference, this mean in firefighters’ left ear was 16.17±8.12 dB and
in office workers was 15.52±6.67 dB with t=0.617 and P=0.538
had no significant difference too. Mean of hearing threshold in
firefighters’ right ear in age 40 or less than it in 4000 Hz was
20.51±10.11 dB and in office workers was 17.50±5.28 dB with
t=2.153 and P=0.033 had significant difference.
Conclusion: Mean of hearing threshold in firefighters in all
frequencies was normal, except 4000 frequency. It showed the
early effect of occupational exposure on hearing.
