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目的:了解学龄前儿童血铅现状,观察城区、工业园区、农村儿童的血铅水平和不良生活习惯、生活环境对血铅的影响并干预治疗。方法:对城区、农村的3~6岁5126名儿童,按市中心、农村、工业园区分类测定血铅水平,建立医院、幼儿园、家庭“三位一体”的干预治疗模式,根据儿童的生活习惯和居住环境分类,观察血铅水平,干预治疗1年,再次测定血铅水平,观察其对儿童血铅的影响。结果:工业园区儿童的血铅含量最高,其次是市中心儿童,农村儿童的血铅含量最低。有手—口习惯、吃零食习惯,生活在非洁净环境的儿童血铅水平明显高于对照组。形成正确洗手习惯及矫正手—口习惯,矫正吃零食习惯,清洁生活环境,观察1年,再次测血铅水平显示明显降低,统计学有显著差异,说明干预治疗可以有效的降低血铅水平。
Objective: To understand the current status of blood lead in preschool children, to observe the blood lead levels and bad habits of urban children, industrial parks and rural children, and the impact of living environment on blood lead and intervention treatment. Methods: According to the classification of 5126 children from 3 to 6 years old in urban and rural areas, the level of blood lead was determined according to the classification of municipalities, rural areas and industrial parks. The interventional treatment model of hospitals, kindergartens and families was established according to the living habits of children And living environment classification, blood lead levels were observed, intervention for 1 year, blood lead levels were measured again to observe the impact on children’s blood lead. Results: Children in industrial parks had the highest levels of blood lead, followed by children in downtown areas, and children in rural areas had the lowest levels of blood lead. Have hands - mouth habits, eating habits, children living in non-clean environment, blood lead levels were significantly higher than the control group. The formation of a correct hand-washing habits and correction of hand-mouth habits, eating habits correction, clean living environment, observed 1 year, once again measured blood lead levels decreased significantly statistically significant difference, indicating that intervention can effectively reduce blood lead levels.