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本研究以湖北省78个县、市为研究对象,用单因素及多因素分析方法探讨了土壤微量元素含量与胃癌死亡率的关系,直线相关分析表明镍、锌、钡、铅、锆、铌、铁和磷与胃癌死亡率有显著性相关;逐步回归分析在a=0.1时,铜、锆、铁、钴和铌5因素被选入回归方程,它们是与胃癌死亡率有统计学联系的主要因素。
In this study, 78 counties and cities in Hubei Province as the research object, the relationship between soil trace elements and the mortality of gastric cancer was discussed by single factor and multivariate analysis. The linear correlation analysis showed that the contents of nickel, zinc, barium, lead, zirconium and niobium , Iron and phosphorus and gastric cancer mortality were significantly related; stepwise regression analysis at a = 0.1, copper, zirconium, iron, cobalt and niobium 5 factors were selected regression equation, which is statistically related with the mortality of gastric cancer major factor.