Impairment of extra-high frequency auditory thresholds in subjects with elevated levels of fasting blood glucose

Anindya Das; Ahmed Faisal Sumit; Nazmul Ahsan; Masashi Kato; Nobutaka Ohgami; Anwarul Azim Akhand

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Impairment of extra-high frequency auditory thresholds in subjects with elevated levels of fasting blood glucose

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This study was performed to assess whether there is an association between elevated Fasting Blood Glucose (FBG) and hearing impairment in Bangladeshi population. A total of 142 subjects (72 with elevated FBG; 70 control) were included in the study. The mean auditory thresholds of the control subjects at 1, 4, 8 and 12 kHz frequencies were 6.35 ± 0.35, 10.07 ± 0.91, 27.57 ± 1.82, 51.28 ± 3.01 dB SPL (decibel sound pressure level), respectively and that of the subjects with elevated FBG were 8.33 ± 0.66, 14.37 ± 1.14, 38.96 ± 2.23, and 71.11 ± 2.96 dB, respectively. The auditory thresholds of the subjects with elevated FBG were significantly (p < 0.05) higher than the control subjects at all the above frequencies, although hearing impairment was most evidently observed at an extra-high (12 kHz) frequency. Subjects with a long duration of diabetes (>10 years) showed significantly (p < 0.05) higher level of auditory thresholds at 8 and 12 kHz, but not at 1 and 4 kHz frequencies, compared to subjects with shorter duration of diabetes (≤10 years). In addition, based on the data of odds ratio, more acute impairment of hearing at the extra-high frequency was observed in diabetic subjects of both older (>40 years) and younger (≤40 years) age groups compared to the respective controls. The binary logistic regression analysis showed a 5.79-fold increase in the odds of extra-high frequency hearing impairment in diabetic subjects after adjustment for age, gender and BMI. This study provides conclusive evidence that auditory threshold at an extra-high frequency could be a sensitive marker for hearing impairment in diabetic subjects.

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《中华耳科学杂志（英文版）》 |2018年第001期|29-35|共7页
作者
Anindya Das; Ahmed Faisal Sumit; Nazmul Ahsan; Masashi Kato; Nobutaka Ohgami; Anwarul Azim Akhand;
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作者单位

Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh;

BRAC James P Grant School of Public Health, BRAC University, Dhaka, Bangladesh;

Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh;

Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh;

Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan;

Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan;

Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh;

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Impairment of extra-high frequency auditory thresholds in subjects with elevated levels of fasting blood glucose

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