用主成分法评价学龄前儿童的营养状况

楚洁; 高永清; 李李; 方东生; 秦树阳; 赵奇红; 程萍

用主成分法评价学龄前儿童的营养状况

Application of principal component analysis in evaluating nutritional status of preschool children

摘要

摘要:
目的用主成分法评价学龄前儿童营养状况, 并与kaup指数法相比较.
方法用分层整群随机抽样的方法在合肥市抽取8所幼儿园, 分别测量儿童的身高、体重值, 按照5类分级标准分别采用主成分法及kaup指数法对儿童的营养状况进行评价, 并与身高标准体重法相比较.
结果一致性检验结果表明, 主成分法和kaup指数法存在一致性(P < 0.01).配对McNemar检验表明, 两者的肥胖检出率有显著性差异(P < 0.01).主成分法的肥胖检出率(3.21%)明显高于kaup指数法(0.63%).
结论在评价学龄前儿童的营养状况尤其是儿童肥胖时, 主成分法是较好的方法.

Abstract:
Objective To compare the effects of principal component analysis and Kaup index in evaluating nutritional status of preschool children.
Methods Eight kindergartens were selected randomly in Hefei by using stratified cluster sampling method.Body heights and body weights of children were measured, and their nutritional status were evaluated using principal component analysis and Kaup index respectively according to five-class criteria, then the two methods were compared with method of weight for height.
Results The test of consistency showed that there was consistency between principal component analysis and Kaup index(P < 0.01), meanwhile, McNemar test indicated that there was a significant difference between them in the rate of obesity detected.Principal component analysis showed higher obesity prevalence than Kaup index(3.21% vs.0.63%).
Conclusion Principal component analysis was a better method for evaluating nutritional status of preschool children, especially for evaluating childhood obesity.

HTML全文

参考文献(9)

施引文献

资源附件(0)