以2010年中国30个省市中城市汉族青少年为研究对象。身高、体质量数据来自《2010年中国学生体质与健康调研报告》，以Stevenson和DuBois公式计算男女体表面积值。选择7～18岁12个年龄段身高、体质量和体表面积3项指标的36个参数，利用方差最大正交旋转进行因子分析，将各指标参数的均值转化为因子分。以因子分作样本间Q聚类分析(Ward法)，将男女各30个样本归纳成若干类别，用Cub模型拟合上述各类体表面积发育曲线。3项指标(身高、体质量和体表面积)能较好综合概括不同种族群体生长发育的差异；男女生均聚合成3类；男女生均可分为发育较高组和较低组；各类群体间生长发育存在差异性。结果表明中国城市汉族青少年体表面积既有相似性，又有差异性，总体上呈现出北高南低、东高西低的发育格局。%Based on the height and body mass data of teenagers of the Han nationality in 30 provinces and cities in 2010 Chinese student constitution and health research report, the authors calculated male and female body surface area values by using Stevenson and DuBois formula, selected 36 parameters of such 3 indexes as height, body mass and body surface area of teenagers ages 7-18 in 12 age groups, carried out a factor analysis by utilizing varimax orthogonal rotation, turned the mean values of various index parameters into factor scores, carried out a between-sample Q cluster analysis based on factor scores, sorted 30 male samples and 30 female samples into several categories, model fit vari-ous body surface area development curves mentioned above by using Cub model, and revealed the following findings:the 3 indexes (height, body mass and body surface area) could comprehensively summarize differences in the growth and development of difference racial groups well; the males and females were clustered into 3 categories; both the males and females could be divided into a high-level development group and a low-level development group;there were differences in growth and development between various groups. The said findings indicated that the body surface area of teenagers of the Han nationality in cities across China showed similarities as well as differences, and generally presented a pattern of development whose level became lower from north to south and from east to west.
展开▼
