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目的了解兰州市儿童血铅水平及其影响因素,为进一步防治儿童铅中毒提供科学依据。方法采用单因素分析及多因素Logistic回归分析方法,对随机抽取兰州市某综合医院1510例儿童血铅的可能的危险因素进行回顾性分析。结果兰州市儿童血铅的几何均数为50μg/L,铅中毒率为10.13%,引入logistic回归模型的因素有:居家附近的工厂(OR=1.814,95%CI=1.282～2.567)、住所装修(OR=-0.472,95%CI=0.435～0.896)、食用膨化食品(OR=0.234,95%CI=1.050～1.521)、进食前洗手(OR=-0.305,95%CI=0.558～0.974)、看图书(OR=-0.172,95%CI=0.711～0.996)。结论改善儿童居住环境、改善饮食结构、鼓励儿童进食前洗手是控制儿童铅中毒的有效措施。
Objective To understand the level of blood lead in children in Lanzhou City and its influencing factors, and to provide a scientific basis for further prevention and control of childhood lead poisoning. Methods Univariate analysis and multivariate Logistic regression analysis were used to analyze the possible risk factors of blood lead in 1510 children randomly from a general hospital in Lanzhou City. Results The geometric mean number of blood lead was 50μg / L and the rate of lead poisoning was 10.13% in Lanzhou city. The logistic regression model included: factory near home (OR = 1.814, 95% CI = 1.282-2.567) (OR = -0.472, 95% CI = 0.435-0.896), the consumption of puffed food (OR = 0.234,95% CI = 1.050-1.521) Reading books (OR = -0.172, 95% CI = 0.711 ~ 0.996). Conclusion Improving children’s living environment, improving diet and encouraging children to wash hands before eating are effective measures to control children’s lead poisoning.