目的 了解并分析中国9地区3～12岁儿童生长发育和营养状况,为促进儿童保健和营养管理提供依据。方法 对9地区(7城市,2农村)1 722名儿童进行身高、体重等体格测量和问卷调查,计算相应Z评分,综合评价被调查儿童的生长发育和营养状况。结果 9地区被调查儿童的身高和体重均值及超重率较高,而低体重率、生长发育迟缓率、消瘦率较低,年龄别体重(weight for age Z-score,WAZ)、年龄别身高(height for age Z-score,HAZ)和年龄别BMI(BMI for age Z-score,BAZ)达中等以上发育水平者分别为89.04%、89.19%和83.22%,城市儿童和农村儿童消瘦率、超重率以及WAZ、BAZ发育较差者所占比例的差异有统计学意义(P<0.05)。结论 9地区被调查儿童生长发育总体状况较好,但仍然存在低体重和超重、肥胖的情况,应重视儿童的健康教育和营养管理工作。

Objective To investigate and analyze the growing development and nutritional status of children aged 3～12 years from 9 areas of China,and to provide evidences for health care and nutrition management of children. Methods Physique growth investigation ( ie.body height and weight) and questionnaire were carried out in 1 722 children from 9 areas ( 7 cities and 2 countrysides),and related Z-scores were computed to assess growing development and nutritional status of investigated children. Results The mean height,mean weight and obesity rate of investigated children from 9 areas were higher (or larger),and the low weight rate,growth stunt rate and waste rate were lower.The proportions of children whose weight for age Z-score (WAZ),height for age Z-score (HAZ) and BMI for age Z-score (BAZ) reached medium level or better were 89.04%,89.19% and 83.22%,respectively.There were significant differences in the waste rate and overweight rate between children in city and in countryside. Conclusions The nutrition status of children from 9 areas is good,while low body weight,overweight and obesity are continuing.More attention should be paied to health care and nutrition management of children.