Prevalence of hypertension and noise-induced hearing loss in Chinese coal miners
Prevalence of hypertension and noise-induced hearing loss in Chinese coal miners
复制标题
DOI：
10.21037/jtd.2016.02.59
复制
发表时间：
2016-03-01
影响因子：
2.5
通讯作者：
Zhu, Baoli
中科院分区：
文献类型：
--
作者：
Liu, Jing;Xu, Ming;Zhu, Baoli
背景资料：由于流行病学证据不一致和混杂因素的存在，职业噪声暴露与高血压的关系仍不清楚。我们的目的是评估中国煤矿工人是否有患高血压和噪声性听力损失（NIHL）的风险，以及职业性噪声暴露是否是高血压的危险因素。方法：设计了一份问卷，收集738名研究参与者的信息，所有这些人都是来自大屯徐州煤炭公司的员工。参与者被分为噪声暴露组和对照组，根据他们在工作场所暴露的噪声水平。比较噪声暴露组和对照组的收缩压（SBP）和舒张压（DBP）均值的差异。研究中还比较了听力缺陷和高血压的患病率和年龄调整的比值比（OR）[95%置信区间（CI）]。结果：噪声暴露组高血压患病率为29.2%，高于对照组的21.2%（P=0.012）;以对照组为参照，噪声暴露组高血压风险增加（年龄调整OR = 1.52，95%CI = 1.07-2.15）。噪声暴露组的SBP和DBP均值显著高于对照组（P=0.006和P=0.002）。噪声暴露组的低频听力损失发生率显著高于对照组，分别为12.8%和7.4%（P=0.015），而噪声暴露组的低频听力损失风险增加（年龄调整OR = 1.81，95%CI = 1.10-2.96）。在控制潜在混杂因素后，L-EX、L-Sh（OR = 1.036，95%CI = 1.012-1.060）是高血压的独立危险因素。职业性噪声是高血压的独立危险因素，可使收缩压、舒张压升高。
Background: Owing to inconsistent epidemiologic evidence and the presence of confounding factors, the relation between occupational noise exposure and hypertension still remained unclear. We aimed to assess whether Chinese coal miners were at risk of developing hypertension and noise induced hearing loss (NIHL), and whether occupational noise exposure was a risk factor of hypertension.Methods: A questionnaire was designed to collect information from 738 study participants, all of whom were employees from the Datun Xuzhou Coal Company. The participants were divided into a noise-exposed group and a control group based on the noise level to which they were exposed in the workplace. The differences in the mean of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were compared between the noise-exposed and control groups. Also the prevalence and age-adjusted odds ratio (OR) [95% confidence intervals (CIs)] of audiometric deficit and hypertension was compared in the study. Binary logistic regression was used to assess the relation between occupational noise level and hypertension while controlling for potential confounding factors.Results: Hypertension was more prevalent in noise-exposed group than the control group, 29.2% vs. 21.2% (P=0.012). The noise-exposed group faced an increased risk of hypertension (age-adjusted OR = 1.52, 95% CI = 1.07-2.15) when the control group was used as reference. The mean values of SBP and DBP of the noise-exposed groups were significantly higher than the control group (P=0.006 and P=0.002 respectively). Hearing loss at low frequencies was significantly more prevalent in the noise-exposed group than the control group, 12.8% vs. 7.4% (P=0.015), while the noise-exposed group faced the increased risk of hearing loss at low frequencies (age-adjusted OR = 1.81, 95% CI = 1.10-2.96). L-EX,L-Sh (OR = 1.036, 95% CI = 1.012-1.060) was an independent risk of hypertension when controlling for potential confounding factors.Conclusions: We found that the occupational noise had an effect on the hypertension and hearing loss of Chinese coal miners. And the occupational noise was an independent risk factor for hypertension and could increase the values of SBP and DBP.