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目的探讨某汽车制造企业工作场所中噪声对工人血脂水平的影响。方法对盐城某汽车制造企业工人进行职业健康检查,随机选择长期接触高噪声[83.6~99.1 LAeqdB(A)]222人为观察组,接触低噪声[54.2~70.0 LAeqdB(A)]320人为对照组。结果观察组工人血清中总胆固醇(TC)水平为(4.63±0.82)mmol/L,甘油三酯(TG)水平为(1.66±1.31)mmol/L;对照组工人血清中TC水平为(4.19±1.02)mmol/L,TG水平为(1.32±1.03)mmol/L。观察组工人血清中TC水平与TG水平均明显高于对照组,差异有统计学意义(均P<0.05)。观察组中工人血清中TC水平高于正常值的有37人,对照组中有33人;观察组中工人血清中TG水平高于正常值的有64人,对照组中有64人。观察组中血清中TC水平异常率与TG水平异常率均高于对照组,差异均有统计学意义(均P<0.05)。观察组中患脂肪肝的有28人,对照组中有24人,观察组中脂肪肝阳性率高于对照组(χ2=3.95,P<0.05),差异有统计学意义。结论长期接触高噪声可能是工人的血脂水平升高的危险因素。
Objective To explore the effect of noise on the blood lipid level of workers in a car manufacturing enterprise. Methods Occupational health examination was performed on workers in an automobile manufacturing enterprise in Yancheng. Long-term exposure to 222 high-noise [83.6 ~ 99.1 LAeqdB (A)] observation groups and 320 low noise [54.2-70.0 LAeqdB (A)] exposure groups were randomly selected as the control group. Results The levels of total cholesterol (TC) and serum triglyceride (TG) were (4.63 ± 0.82) mmol / L and (1.66 ± 1.31) mmol / L respectively in the observation group and those in the control group were (4.19 ± 1.02) mmol / L, TG level was (1.32 ± 1.03) mmol / L. The levels of TC and TG in the serum of the observation group were significantly higher than those in the control group (all P <0.05). In the observation group, there were 37 workers whose TC level was higher than normal in the serum of the workers and 33 people in the control group. Among the workers in the observation group, there were 64 people whose TG level was higher than normal in the serum of the workers and 64 people in the control group. In the observation group, the abnormal levels of TC and abnormal TG in serum were higher than those in the control group (all P <0.05). In the observation group, there were 28 patients with fatty liver and 24 patients in the control group. The positive rate of fatty liver in the observation group was higher than that in the control group (χ2 = 3.95, P <0.05). The difference was statistically significant. Conclusion Long-term exposure to high noise may be a risk factor for elevated blood lipids in workers.