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为了探讨胃癌早期疹断、保护高危人群并进行现场筛选的客观指标,随机选择30例胃癌患者和37例良性胃病患者,并测定其胃液CEA及微量元素Fe、Cu的水平,三指标均为胃癌组高于良性胃病组(P<0.01)。用判别分析方法得判别函数式Z=3.8995×10~(-4)x_1+0.0419x_2+0.1977x_3,判别能力有极显著意义(P<0.01),其中Fe对胃癌关系颇为密切,贡献率为82.25％。用本资料回代结果,判别符合率为97.01％。另用24例新病例进行判断,仅1例误判。该判别式有一定的临床实用价值,可作为胃癌早期诊断、预报及筛选的定量指标之一。
In order to investigate objective indicators of early rash, protection of high-risk population and on-site screening for gastric cancer, 30 patients with gastric cancer and 37 patients with benign gastropathy were randomly selected and their levels of CEA and trace elements Fe and Cu were determined. The three indicators were all gastric cancer. The group was higher than the benign gastropathy group (P<0.01). Using discriminant analysis method to obtain the discriminant function formula Z=3.8995×10~(-4)x_1+0.0419x_2+0.1977x_3, the discriminatory power has extremely significant significance (P<0.01), among which Fe has a close relationship with gastric cancer, and its contribution rate is 82.25%. With the results of the back-generation of this data, the discrimination rate was 97.01%. In addition, 24 new cases were used for judgment and only 1 case was misjudged. The discriminant has a certain clinical practical value and can be used as one of the quantitative indicators for early diagnosis, prediction and screening of gastric cancer.