某造纸厂工人噪声暴露与高血压的关系
Dose-Response Relationship between Noise Exposure and Hypertension of Paper Mill Workers
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摘要:
目的 研究造纸生产过程中噪声与作业人员高血压的关系。 方法 选取某大型造纸企业,对其作业场所噪声声压级进行监测;同时选择该企业接触噪声作业人员作为观察组、其他单位行政管理人员作为对照组进行职业健康体检,包括血压测定。对不同分组人员高血压患病率进行统计分析。 结果 观察组高血压患病率(9.1%)高于对照组(4.9%),差异有统计学意义(P<0.01)。经趋势卡方检验,噪声暴露量(8 h等效连续A声级)与高血压患病率间存在明确的剂量-反应关系(P<0.05)。 结论 该造纸厂噪声污染普遍存在,长期噪声作业对工人的血压有一定影响。 Abstract:Objective To investigate the impact of noise produced in the process of paper manufacturing on workers' blood pressure. Methods Sound pressure levels of different workplaces were detected in a large paper mill. Workers with occupational exposure to the noise in the mill were selected as observation group and administration staff from other factories as control group. A physical examination including blood pressure was conducted. Data obtained were used to analyze the prevalence of hypertension in workers with different noise exposure levels. Results The prevalence of hypertension in the observation group (9.1%) was obviously higher than that in the control group (4.9%) (P<0.01). Trend chi-square test showed a clear doseresponse relationship between noise exposure (8 h equivalent continuous A-weighted sound pressure level, LAeq) and the prevalence of hypertension (P<0.05). Conclusion Noise pollution exists in the paper mill. Long-time exposure to the noise could affect workers' blood pressure and induce hypertension.
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