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血压水平受到多种因素的影响,其中包括遗传、环境等因素的影响。大量的研究已经证实,遗传基因和环境因素的综合作用,对血压水平起非常重要的影响。为了研究大量的环境和遗传因素对血压水平的影响,国内外不少人使用多元逐步回归分析来研究,对血压水平“有影响”的因素与血压水平之关系。但是,由于在这些因素之间,不可避免地存在着相关关系,逐步回归分析有时不能选出较好的变量,甚至变量的正负号相反,造成解释的困难,所以我们采用岭回归(多
Blood pressure levels are affected by many factors, including genetic, environmental and other factors. Numerous studies have confirmed that the combined effects of genetic and environmental factors have a very significant impact on blood pressure levels. In order to study the impact of a large number of environmental and genetic factors on blood pressure levels, many people at home and abroad use multivariate stepwise regression analysis to study the relationship between “influencing” blood pressure levels and blood pressure levels. However, due to the unavoidable relationship between these factors, stepwise regression analysis can sometimes fail to pick out better variables, and even the sign of the variables is reversed, which causes difficulties in interpretation. Therefore, we use ridge regression