背景：在與聽力障礙相關的個體代謝危險因素中，許多研究已經調查了糖尿病，高血壓，高脂血症，肥胖和高身體質量指數對聽力的影響。然而，代謝症候群本身與職業性噪音暴露之間的關聯很少被研究過。
目的：本研究的目的是評估職業性噪音暴露與代謝症候群相關性探討。
方法：本研究為回溯性研究設計，以2015.1.1~2018.12.31期間參與屏東市某區域醫院勞工體檢之職業性噪音暴露勞工為研究對象。利用體檢資料庫個人基本資料、身體理學檢查及抽血檢驗數據進行資料處理。聽力檢查包括a、醫師用耳鏡看耳道是否異常b、用儀器測試純音聽力檢查(PTA)。以邏輯斯迴歸分析評估有無噪音暴露環境與代謝症候群的關係。
結果：有噪音暴露者罹患代謝症候群比例顯著高於無噪音暴露者(34.8% vs. 13.6%)，達統計顯著差異。聽力異常者罹患代謝症候群比例顯著高於正常者(43.8% vs. 16.3%)。在代謝症候群組成因子中三酸甘油酯異常、高密度脂蛋白膽固醇異常、空腹血糖異常、血壓異常、腰圍異常者，均有較高比例為職業噪音暴露者。以邏輯斯迴歸分析罹患代謝症候群之影響因子，結果顯示；男性、年齡越大、BMI異常、有噪音暴露者，是罹患代謝症候群之危險因子。其中有噪音暴露者罹患代謝症候群風險是無噪音暴露者1.72倍。
結論：有噪音暴露者有較高的罹患代謝症候群盛行率。職業噪音暴露者在代謝症候群組成因子中異常比例均較無噪音暴露者為高。本研究顯示:男性、年齡越大、BMI異常、有噪音暴露者，是罹患代謝症候群之危險因子。

Background: Among the individual metabolic risk factors that are related to hearing impaired, the influence of diabetes, hypertension, hyperlipidemia, obesity and high body mass index (BMI) on hearing have been thoroughly investigated by many studies. However, the association between metabolic syndrome itself and occupational noise exposure has rarely been investigated. Purpose: The aim of this study was to assess the correlation between occupational noise exposure and metabolic syndrome.
Methods: A retrospective study design was used. Data were collected through the occupational noise exposure of labor examinations by a hospital in a certain area in Pingtung County from January 1st, 2015 to December 31st, 2018. The health data base included participants’ basic information, physical examination and blood examination results. Hearing examinations includes a. The doctor uses the otoscope to see if the ear canal is abnormal. b. Test the pure tone audiometry (PTA) with the equipment. Logistic regression analysis was used to assess the relationship between exposure to noise environment and metabolic syndrome.
Results: Those exposed in noises have significantly higher rate to have metabolic syndrome than those without noise exposure (34.8% vs. 13.6%), reaching statistically significant differences. Those who are hearing impaired have significantly higher rate to have metabolic syndrome than those with normal hearing (43.8% vs. 16.3%). Among the composition factors of metabolic syndrome, abnormal triglycerides, abnormal high-density lipoprotein cholesterol, abnormal fasting blood glucose, abnormal blood pressure, and abnormal waist circumference, all have a higher proportion of having occupational noise exposure. Using logistic regression analysis on the influencing factors of metabolic syndrome showed that: males, older age, abnormal BMI, and noise exposure are risk factors for metabolic syndrome. Among those with noise exposure, the risk of metabolic syndrome was 1.72 times higher than those without noise exposure.
Conclusions: Those with noise exposure and hearing impairments have higher prevalence of metabolic syndrome. Those with occupational noise exposure have higher proportion of having abnormal risk factors in metabolic syndrome than those without noise exposure. This study shows that males, older age, abnormal BMI, and noise exposure are risk factors for metabolic syndrome.