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Korean Journal of Preventive Medicine 1997;30(3): 623-629.
Association between air conduction hearing threshold and blood viscosity in normal adult males.
Sang Woo Kim, Jong Young Lee, Wan Seup Park, Kuck Hyeun Woo
Department of Preventive Medicine, College of Medicine, Soonchunhyang University, Korea.
ABSTRACT
This is cross-sectional study a potential relationship between air conduction hearing threshold and blood viscosity in normal adult males(n=1677). We measure hearing threshold in frequency level at 500, 1000, 2000, 4000Hz by pure-tone audiometry and RBC profiles contains red cell number, hemoglobin, hematocrit. Blood viscosity replaced by hematocrit that are one major factor of influencing blood viscosity. PTAs(pure-tone averages) measured by hearing threshold averages level at 500Hz, 1000Hz, 2000Hz by pure-tone audiometry. Grades of PTAs(pure-tone averages) are less then 10.0dB group, between 10.0-19.9dB group and excess 20.0dB. The results are significantly association among hematocrit, red cell number and hearing loss(age adjust by ANACOVA).
Key words: hearing threshold; hematocrit; blood viscosity; PTAs(pure-tone averages)
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