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Traffic noise exposure and markers of obesity

机译：交通噪音暴露和肥胖的标志

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Background: There is evidence on adverse health effects, including cardiovascular disease, related to environmental noise exposure. Furthermore, noise exposure may result in annoyance and sleep disturbances as well as increasing saliva cortisol levels, indicating physiological stress. Obesity has been linked to stress, however, no study has focused on the relationship between road traffic noise and obesity. Aim: This study was focused on the association between road traffic noise exposure and markers of obesity, including body mass index (BMI), waist circumference and waist-hip ratio. Methods: The cross-sectional study included 4791 men and women living in six municipalities in Stockholm County during 2002-2006. Long term exposure to road traffic noise was estimated based on geographical address coordinates and digital noise maps. Questionnaires and clinical examinations provided information on outcomes and confounders. We used linear regression to assess statistical associations and adjusted the results for individual as well as area-based confounders. Results: Mean BMI in the study population was 26.6 kg/m2 (SD 4.2). Mean waist circumference was 85.0 cm (SD 10.7) and 95.3 cm (SO 9.7) for women and men, respectively. In the full model, adjusted for sex, smoking status, physical activity, education level and alcohol consumption, we found a statistically significant association between road traffic noise and waist circumference, with a 0.8 cm (95 % CI 0.36 to 1.15) increase per 10 dB(A) rise. No clear associations were found for BMI. Conclusions: Our preliminary findings suggest that road traffic noise exposure may affect markers of obesity, in particular waist circumference. This could be of importance for noise induced cardiovascular effects.
机译：背景：有证据表明与环境噪声暴露有关的不利健康影响包括心血管疾病。此外，噪声暴露可能会导致烦恼和睡眠障碍，以及唾液皮质醇水平升高，表明存在生理压力。肥胖与压力有关，但是，没有研究集中在道路交通噪音与肥胖之间的关系上。目的：这项研究的重点是道路交通噪声暴露与肥胖标志物之间的关联，包括体重指数（BMI），腰围和腰臀比。方法：该横断面研究纳入了2002-2006年斯德哥尔摩郡六个城市中的4791名男女。根据地理位置坐标和数字噪声图估算了长期暴露于道路交通噪声中。问卷调查和临床检查提供了有关结局和混杂因素的信息。我们使用线性回归来评估统计关联，并针对个人以及基于区域的混杂因素调整了结果。结果：研究人群的平均BMI为26.6 kg / m2（SD 4.2）。女性和男性的平均腰围分别为85.0厘米（标准差10.7）和95.3厘米（标准差9.7）。在完整模型中，对性别，吸烟状况，体育锻炼，文化程度和饮酒量进行调整后，我们发现道路交通噪音与腰围之间存在统计学上的显着关联，每10厘米可增加0.8厘米（95％CI为0.36至1.15） dB（A）上升。找不到与BMI明确的关联。结论：我们的初步发现表明，道路交通噪声暴露可能会影响肥胖的标志物，尤其是腰围。这对于噪声引起的心血管效应可能很重要。

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