在研究工作中应用多元回归分析,目的是依据一组观测数据估计回归系数,并对回归系数作统计检验以确定因变量与多个自变量间的多元线性模型。然而,医学实践工作常要求对由不同实验条件或观察对象建立的几个多元回归模型作比较,以判断多个回归模型是否相等。多个回归模型相等的检验包含两个内容:即检 Multivariate regression analysis is used in the research work to estimate regression coefficients based on a set of observations and to test the regression coefficients to determine the multivariate linear model between the dependent variable and multiple independent variables. However, medical practice often requires comparison of several multivariate regression models established by different experimental conditions or observers to determine if multiple regression models are equal. The test of equality of multiple regression models consists of two parts: check