根据毛发中微量元素的含量，应用逐步判别分析进行了胃癌辅助诊断的研究，所得结果令人满意。特别显示了用统计方法筛选出的几种元素在区分是否胃癌上起着显著的作用。 According to the content of trace elements in hair, stepwise discriminant analysis was applied to the study of adjuvant diagnosis of gastric cancer. The results obtained were satisfactory. In particular, it is shown that several elements selected by statistical methods play a significant role in distinguishing whether or not gastric cancer is involved.