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对胃镜诊断的93例慢性浅表性胃炎患者的空腹体表胃电图进行聚类分析。17项指标聚为反映胃电的振幅、主频、中低频和高频4大类。将相关系数大于0．8的指标合并，以剩下13项典型指标进行胃电导联样品聚类，聚为6类，结果显示浅表性胃炎胃电图以基本正常或正常者为主，低频分量多者也属常见，高频者少见。
93 cases of chronic superficial gastritis diagnosed by gastroscopy were analyzed by cluster analysis. 17 indicators converge to reflect the amplitude of gastric electrical, frequency, low frequency and high frequency 4 categories. The correlation coefficient is greater than 0.8 indicators were combined, with the remaining 13 typical indicators of gastric electrical conductivity sample clustering, clustered into six categories, the results showed that superficial gastritis with normal or normal ECG mainly low frequency Component is also common, high frequency rare.