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我省在参加全国十省农村儿童体质调查研究时,有目的地选择了延边朝鲜族自治州的延吉市与龙井、和龙两个县参与了此次工作。这不仅为我省填补了既往无农村儿童体质资料的空白,同时也为我国朝鲜族儿童体质研究提供了有价值的资料。我们选择具有代表性的长春市、永吉县、镇赉县为汉族调查对象的地区,以延吉市、和龙县、龙井县为朝族的代表地区。在调查点中,自初生～6岁的儿童,根据年龄组距的要求,进行整群随机抽样,共分22个年龄
When participating in the survey of rural children’s physique in ten provinces of our country, our province chose Yanji City and Longjing and Helong two counties in Yanbian Korean Autonomous Prefecture to participate in this work. This not only for our province to fill in the past without rural children’s physical information of the blank, but also for our Korean children’s physical study provides valuable information. We select the representative Changchun City, Yongji County and Zhenlai County as the surveyed areas of the Han nationality, and take Yanji City, Heilong County and Longjing County as representative areas of the DPRK. At the survey point, children from birth to 6 years old, according to the requirements of the age group, a randomized cluster of 22 sub-groups