Related factors of high frequency hearing loss in the noise-exposed male workers

Jung, Sang Je; Woo, Kuck Hyeun; Park, Wan Deup; Yu, Jae-Ho; Choi, Tae Sung; Kim, Sang Woo; Kim, Jin Seok

doi:10.35371/kjoem.2000.12.2.187

Cited by 3 publications

(2 citation statements)

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“…Subjects with fasting blood glucose over 125 mg/dL and those taking anti-diabetic medications and with a self-reported history of diabetes were defined as the DM group [1518]. Blood pressure was analyzed as a continuous variable by calculating the mean arterial pressure () which reflects the average effective pressure [22]. Smoking history was classified as smokers or non-smokers, in which smokers were defined as those participants who had smoked more than 100 cigarettes and those who currently smoked cigarettes [23].…”

Section: Methodsmentioning

confidence: 99%

The effect of diabetes on 4-year changes of hearing thresholds in male workers exposed to noise in a single company: a longitudinal study

Kim

Sung

et al. 2019

Ann Occup Environ Med

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BackgroundRecently, several studies have assessed the association between diabetes and hearing impairment. However, the effect of diabetes on hearing impairment is not well known in diabetic patients exposed to noise, a typical cause of hearing impairment. The aim of this study is to longitudinally analyze the effect of diabetes on hearing impairment in workers exposed to similar noise levels from 2013 to 2017 who had experienced little change in their working conditions.MethodsThe study subjects included 2,087 male workers exposed to noise in a single company and who underwent health examinations at the same hospital in Ulsan city in 2013 and 2017. Hearing impairment was defined that a pure-tone average of pure-tone audiometry (PTA) thresholds at 1,000, 2,000, 3,000, and 4,000 Hz was 25 dB and over in both ears. Statistical analyses were conducted using χ2 tests, ANOVA, and Cox proportional hazard models. We analyzed covariates that might affect hearing impairment, including age; working period; levels of total cholesterol, triglyceride, and serum creatinine; smoking and alcohol history; and noise level.ResultsThe average PTA thresholds and their average changes between 2013 and 2017 were significant in the diabetes mellitus (DM) group than those in the normal and impaired fasting glucose group. Among the subjects with the same status of fasting glucose group in 2013 and 2017, the adjusted hazard ratios for incident hearing impairment among those in the DM group compared to normal group were 3.35 (95% confidence interval [CI], 1.54–7.29) in the left ear and 5.66 (95% CI, 2.01–15.98) in the right ear.ConclusionsThis study suggested that the risk of hearing impairment in the DM group was significantly higher than that in the normal group in both ears, even when exposed to similar noise levels.

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Section: Methodsmentioning

confidence: 99%

The effect of diabetes on 4-year changes of hearing thresholds in male workers exposed to noise in a single company: a longitudinal study

Kim

Sung

et al. 2019

Ann Occup Environ Med

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“…However, the related occupational disease monitoring systems are still in a fragmented state, and most of these systems cannot be connected, which has a negative impact on the application of data sources. More importantly, in research on high frequency hearing loss (HFHL), there has been more focus on descriptive statistics [11] or risk factor assessment [12] . As a result, there are fewer developed research tools for the assessment of occupational hearing loss, which has caused a major obstacle for obtaining surveillance data and implementing preventive practices, reducing the efficient application of supervision and early warning systems [13] .…”

mentioning

confidence: 99%

The prediction and risk point score (RPS) of high frequency hearing loss in noise exposed workers

Sun

Shang

Cao³

et al. 2020

Preprint

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Background: Occupational hearing loss is a significant occupational health concern in many countries, and high frequency hearing loss (HFHL) is an early symptom. Based on realistic demands, we aimed to build a prediction risk model of HFHL and developed the related risk point score (RPS). The results of this study are expected to provide technological support for interventions and management to enhance application-oriented research of HFHL.Methods: A total of 32121 participants who were noise exposed workers were enrolled. The datasets from the National key occupational diseases survey (NKODS) performed from 2014 to 2017 in Sichuan Province in China were utilized. The sociodemographic and occupational characteristics were assessed by standardized questionnaires, and the level of HFHL were collected by audiometric testing and was defined as a binaural high frequency threshold average (BHFTA) over 40 dB in the right and left ears. The risk prediction models were generated by linear logistic regression, and based on the models, the risk point score (RPS) of HFHL were calculated. Results: Of the 32121 participants in the study, 9.97% (n=4029) of workers had HFHL (BHFTA ≥ 40 dB). Age (OR=1.08, 95% CI: 1.071–1.083), sex (OR=3.34, 95% CI: 2.880–3.636), noise exposure time (OR=1.01, 95% CI: 1.008–1.018), manufacturing industry (OR=1.46, 95% CI: 1.302–1.647), construction industry (OR=2.14, 95% CI: 1.488–3.069), mining industry (OR=2.57, 95% CI: 2.225–2.957), foreign enterprise (OR=0.94, 95% CI: 0.781–1.122), and private enterprise (OR=1.32, 95% CI: 1.200–1.442) were predictors of HFHL (P<0.05). By comparing the two risk prediction models, the 40 dB HL criterion model was found to be more effective than the 25 dB HL criterion model (AUC=0.637). Verification of the two models revealed that the 25 dB HL criterion model was more stable than the 40 dB HL criterion.Conclusion: The study found that the prevalence of HFHL was moderate in Sichuan Province. Sex, age, noise exposure years, and employment in the manufacturing industry, construction industry, mining industry, foreign enterprise, or private enterprise were predictors of HFHL, and the development of the RPS of HFHL is necessary for application-oriented research on HFHL.

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Effect of Aircraft Noise of the Air Force on Noise Sensitivity, Psychosocial Status and Behaviour of Elementary Students

Oh¹,

Kim²,

Chang³

et al. 2008

Journal of agricultural medicine and community health

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= ABSTRACT = Objectives :We evaluated the effect of the aircraft noise on the behavior and affect status of the local elementary school students. Methods :The daytime noise levels of the exposed and control areas were compared and the self answered questionnaires from 272 students and their parents of the exposed area and 91 of the control area were collected. The questionnaires are regarding the noise sensitivity and the psychosocial status of the students, noise sensitivity of the parents and the parents' behavioral evaluation for their children. Results :The mean noise level of the exposed area (67.6 dB(A)) showed higher level than the control area (57.1 dB(A), 58.2 dB(A), 60.2 dB(A)) and it was statistically significant. The mean score for noise sensitivity and the mean score for brief mental exam. in the exposed students were lower than the mean scores in the control group but they were not statistically significant (p=0.056 & 0.165). The mean score for behavioral evaluation of students by their parents in the exposed area(15.5) was higher than the mean score in the control group(13.2) and it was statistically significant(p=0.043). The mean score for noise sensitivity in the exposed parent(27.5) was higher than the mean score in the control group(24.1) and it was statistically significant(p=0.045). Conclusions :This study revealed that the noise sensitivity of the parents affected the behavioral evaluation of the students than noise-exposure itself. The further study is needed to evaluate relationship between aircraft noise and it's effect on children's health.

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Related factors of high frequency hearing loss in the noise-exposed male workers

Cited by 3 publications

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The effect of diabetes on 4-year changes of hearing thresholds in male workers exposed to noise in a single company: a longitudinal study

The effect of diabetes on 4-year changes of hearing thresholds in male workers exposed to noise in a single company: a longitudinal study

The prediction and risk point score (RPS) of high frequency hearing loss in noise exposed workers

Effect of Aircraft Noise of the Air Force on Noise Sensitivity, Psychosocial Status and Behaviour of Elementary Students

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