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目的:了解丰台区目前学龄前儿童血铅水平,为制定积极有效的干预措施提供科学依据。方法:采取整群分层随机抽样的方法,选择北京市丰台区6所城区幼儿园和6所农村幼儿园在园2～6岁儿童2 141名,采用阳极溶出分析法测定血铅水平。结果:丰台区学龄前儿童血铅水平均数为73.90μg/L,其中铅中毒发生率为10.46%;儿童血铅水平存在显著的性别差异,男童铅中毒发生率高于女童,且具有统计意义;血铅水平以2岁组儿童血铅水平最高;儿童血铅水平无显著的地域差异,城市儿童血铅水平和血铅≥100μg/L的发生率与农村儿童无差别(P>0.05)。结论:目前丰台区儿童铅中毒绝大多数处于轻中度铅中毒水平,应采取积极、多样的健康宣教等干预措施防治儿童铅中毒。
Objective: To understand the present level of blood lead in preschool children in Fengtai District and to provide a scientific basis for making active and effective interventions. Methods: A stratified stratified random sampling method was adopted. Two hundred and seventy-one children aged 2-6 years old from 6 urban kindergartens in Fengtai District of Beijing and 2 children aged from 6 to 6 years were selected for the determination of blood lead levels by anodic stripping analysis. Results: The average level of blood lead in pre-school children in Fengtai District was 73.90μg / L, and the incidence of lead poisoning was 10.46%. There was significant gender difference in blood lead levels among boys, and the prevalence of lead poisoning was higher in boys than in girls (P> 0.05). There was no significant regional difference in blood lead levels between children with blood lead levels and 2 years of age. There was no significant difference in blood lead levels and blood lead levels of 100 μg / L between urban children and rural children (P> 0.05) . Conclusion: At present, the majority of lead poisoning in children in Fengtai District is at least mild to moderate level of lead poisoning. Positive and diverse interventions such as health education should be taken to prevent and control childhood lead poisoning.