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An otolaryngological and audiometric examination was performed among 901 motor-sawers occupationally exposed to motor-saw noise, and among 177 persons in a non-exposed control group. Hearing impairment of various degrees was found in 83.7% of motor-sawers examined. In 63.5% of motor sawers hearing impairment was due to noise exposure. The hearing impairment found, was in 88% a reciprocal receptive loss, more intensified in the left ear. It was positively correlated with motor-savers' age, duration of employment in exposure to motor-saw noise, and the amount of wood cut. The average hearing impairment in both ears was significantly higher among motor-sawers with hearing damage due to various causes, than among those with damage due to the motor-saw noise only, which proves a simultaneous overlapping of different factors inducing impairment, including motor-saw noise.
K Bernacki, and
H Rafalski
January 1978,
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K Bernacki, and
H Rafalski
January 1977,
Medycyna pracy,
K Bernacki, and
H Rafalski
May 1982,
Gigiena truda i professional'nye zabolevaniia,
K Bernacki, and
H Rafalski
March 1970,
Zeitschrift fur Orthopadie und ihre Grenzgebiete,
K Bernacki, and
H Rafalski
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K Bernacki, and
H Rafalski
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K Bernacki, and
H Rafalski
January 1995,
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K Bernacki, and
H Rafalski
February 1982,
Gigiena truda i professional'nye zabolevaniia,
K Bernacki, and
H Rafalski
June 2004,
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K Bernacki, and
H Rafalski
December 1961,
Pracovni lekarstvi,
