【摘要】 [目的]采用主成分分析法分析痤疮、斑秃、银屑病、白癜风、单纯糠疹患者头发中5种微量元素的含量特征,为微量元素性疾病的研究提供资料和依据。[方法]通过获得主成分及相应的主成分方程,并解释主成分的理化意义。[结果]前2个主成份累积贡献率达到85.117%,被确定为主要成份,建立主成分函数表达式,分析主成份与原始变量之间的关系。[结论]在这5种常见皮肤病中,儿童比成人更易受到微量元素的影响。更多还原

【Abstract】 [Objective] To analyze the content and characteristics of trace elements among acne, alopecia areata, psoriasis, vitiligo and pityriasis simplex patients by the principal component analysis, so as to provide the material and basis for the man for trace elements diseases. [Methods] Principal components and their principal components equation were obtained, and the physicochemical meaning of principal was explained in detail. [Results] The contribution rate of the two principal components reached to 85.117%, and the two factors were determined to be the principal components as well. The principal function expression was established, and the relationship between principal components and their original variables was analyzed. [Conclusion] Children were more easily affected by trace elements for the five common skin diseases than adults.更多还原