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目的:了解高氟饮水对0~8岁儿童血铅水平的影响及特点。方法:采用分层整群随机抽样的方法,对饮用不同含氟量水质的1 983例0~8岁儿童进行了血铅水平测定,并对可能影响儿童血铅水平的相关因素进行了流行病学调查分析。结果:调查儿童血铅范围在14.4~223.8μg/L之间,高氟饮水儿童血铅水平均数为93.0μg/L,饮用正常水质儿童血铅水平均数为80.4μg/L,两组差异显著;按照饮用水含氟量高低比较儿童血铅均数水平呈由高氟水到轻高氟水逐渐降低趋势。多元逐步回归分析亦显示饮用高氟水与血铅值相关。结论:高氟饮水是影响儿童血铅水平重要危险因素。
Objective: To understand the influence and characteristics of high-fluoride drinking water on blood lead levels in children aged 0-8 years. Methods: A stratified cluster random sampling method was used to measure the level of blood lead in 1 983 children aged 0-8 years drinking different fluoride contents. The related factors that may affect the level of blood lead in children were epidemics Study and Analysis. Results: The range of blood lead in children was between 14.4 and 223.8 μg / L, the mean level of blood lead in children with high fluoride drinking water was 93.0 μg / L, and the average level of blood lead in drinking normal children was 80.4 μg / L, Significantly; in accordance with the level of fluoride in drinking water compared with the average blood lead levels from high fluoride to light fluoride water gradually decreased. Multiple stepwise regression analysis also showed that drinking high fluoride water was associated with blood lead levels. Conclusion: High fluoride drinking water is an important risk factor affecting blood lead levels in children.