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本文采用NCHS/WHO标准为参照人群,以年龄别体重、年龄别身高、身高别体重为评价指标,用Z评分法分别对1990年、1995年北京市5岁以下儿童体格发育及营养状况抽样调查资料进行评价,并分析比较两次调查资料。结果显示5岁以下儿童体重低下、生长迟缓、消瘦3项指标患病率1995年均比1990年下降,下降幅度分别为61.38％、54.19％、44.02％。3项指标各年龄组Z评分均值有所增加(除6～11月龄外),提示1995年北京市5岁以下儿童营养状况比1990年有明显改善。
In this paper, the NCHS / WHO standards as the reference population, age-specific weight, age-specific height, height and weight as the evaluation index, Z score were used to 1990 and 1995 Beijing 5 years of age children’s physical development and nutritional status of the sample survey Data evaluation, and analysis and comparison of two survey data. The results showed that the prevalence of underweight, growth retardation and emaciation among children under 5 years of age were both lower than that of 1990 in 1995, decreasing by 61.38%, 54.19% and 44.02% respectively. The three indicators of each age group Z score average increase (except for 6 to 11 months of age), suggesting that in 1995 the nutritional status of children under the age of 5 in Beijing than in 1990 significantly improved.