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1对象与方法 1.1监测对象根据《全国儿童营养与健康监测工作手册》要求,辽宁省抽取2个城区、2个县区作为监测地区,每个监测区抽取4个乡镇(街道),按照每个乡镇(街道)监测5岁以下儿童500名左右样本量的原则,每个乡镇(街道)抽取部分或全部行政村(居)委会进行。对监测对象具体规定:5岁以下儿童,指在接受保健服务当日未满5周岁的儿童;户口在监测地区,但离开本地1年以上者不作为监测对象;户口在
1 Subjects and Methods 1.1 Monitoring Object According to the “National Children’s Nutrition and Health Monitoring Manual,” Liaoning Province, the extraction of two urban areas, two counties as the monitoring area, each monitoring area draw four towns (streets), according to each Township (street) The principle of monitoring about 500 samples of children under 5 years of age shall be collected by each township (street) in part or all of the administrative village (neighborhood) committees. Specific provisions of the monitoring object: children under 5 years of age, refers to the day of receiving health care services under the age of 5 children; account in the monitoring area, but leave the local one year or more are not monitored; account in