Wu T N, Chou F S, Chang P Y
Bureau of Environmental Protection, Department of Health, Taipei, Taiwan, R.O. China.
Int Arch Occup Environ Health. 1987;59(6):529-36. doi: 10.1007/BF00377915.
A cross-sectional study on noise-induced hearing loss and blood pressure was conducted in a steel mill company. Three hundred testees were selected by cluster sampling. They were physically examined and an audiometry was done. Only 151 workers, who had the highest hearing threshold at 4000 Hz and without any family history of hypertension or treatment of drugs on cardiovascular troubles, were selected as subjects in this study. Multiple regression analyses revealed that body mass index, employment duration, age and hearing loss explained a significant amount of variation in systolic and diastolic blood pressure (R2 = 0.16 and 0.12, respectively). There was no significant relationship between hearing loss and blood pressure. In order to adjust confounding factors, analyses of covariances were used and the results suggest that hearing loss is unrelated to blood pressure. It seems that hearing loss is not appropriate as a noise exposure index to measure the relationship between noise exposure and blood pressure.
在一家钢铁厂公司进行了一项关于噪声性听力损失与血压的横断面研究。通过整群抽样选取了300名受测者。对他们进行了体格检查并进行了听力测定。本研究仅选取了151名工人作为研究对象，这些工人在4000赫兹时听力阈值最高，且无任何高血压家族史或心血管疾病药物治疗史。多元回归分析显示，体重指数、工作年限、年龄和听力损失在收缩压和舒张压变化中占显著比例（R2分别为0.16和0.12）。听力损失与血压之间无显著关系。为调整混杂因素，采用了协方差分析，结果表明听力损失与血压无关。似乎听力损失不宜作为衡量噪声暴露与血压之间关系的噪声暴露指标。
