摘要
①目的探讨肥胖与非肥胖膳食、营养结构的特点。②方法利用中国健康与营养调查研究项目中山东省的相关资料。选取2000年调查中18～65岁成人作为研究对象。用主成分分析的方法从整体上分析肥胖与非肥胖人群膳食、营养结构。用SAS软件整理分析数据资料。⑧结果膳食模式：肥胖人群的第一主成分的贡献率为22％，非肥胖人群的第一主成分的贡献率为19％；到第5个主成分时累计贡献率可达70％以上。根据各主成分的特征向量大小和方向，肥胖人群的第一主成分主要由酒类、糖类、盐酱调料类和动植物油类构成，而非肥胖人群的第一主成分主要由动植物油类、盐酱调料类、谷类和根茎类构成。表明肥胖与非肥胖人群的膳食模式有所不同，肥胖人群缺少谷类和根茎类，且有喜食甜食和酒类嗜好。营养结构：肥胖人群的第一主成分的贡献率为49％，非肥胖人群的第一主成分的贡献率为52％；到第3个主成分时累计贡献率可达70％以上。根据各主成分的特征向量大小和方向，两类人群的营养结构基本相似。④结论肥胖与非肥胖人群的膳食模式不同，但营养结构接近。
Objective To study the characters of dietary pattern and nutrition structure between the obese and non - obese group. Methods Using Sbandong province data on China health and nutrition survey, adults from 18 to 65 years in 2000 year survey were chosed as study objects. The principal analysis method was used to analysize dietary pattern and nutrition structure between the obese and non - obese group and the SAS software was used to analyse data. Results Dietary pattern： the contribution proportion of the first principal component in the obese group and non - obese group was 22% and 17% ,the cumulative of the fivetb principal components was above 70%. According to the size and direction of the eigenvalues of principal components, the first principal component in obese subjects consisted mainly of wines, sugar, salt taste, heavy condiments and oil, while that in non - obese subjects was mainly composed of oils, salt taste, heavy condiments and grains and rootstocks, which demonstrated that the dietary patterns were different between the the obese and non - obese people, that was the obese people lacked grains and rootstocks and liked the sweet food and alcohol. Nutrition structure：the dedicated rate of the first principal component was 49% and 52% in the obese subjects and the non - obese subjects; there was above 70% at the third principal components. The nutrition structure of the two kinds of people was similar according to the burden and direction of the principal components. Conclusion There were differences between the obese and non - obese group in terms of dietary pattern, but it was almost the same in the nutrition structure.
出处
《华北煤炭医学院学报》
2008年第5期591-593,共3页
Journal of North China Coal Medical College
关键词
肥胖症
主成分分析
膳食结构
营养结构
Obesity. Principal components analysis. Dietary pattern （Dietary structure）. Nutritional status （Nutrition structure ）
