Method for establishing model for obtaining glomerular filtration rate and application

The invention relates to a method for establishing a model for obtaining the glomerular filtration rate of Chinese population and the application thereof. The establishing method comprises the following steps: S1, carrying out single factor analysis on a plurality of candidate independent variables corresponding to the glomerular filtration rate known by a patient by using least square method linear regression, and screening out a plurality of first independent variables; S2, carrying out multielement analysis on the first independent variables by using multiple linear regression modeling, andsimplifying the quantity of the first independent variables to establish a first model, wherein the function expression of the first model is GFR=94047.95*0.8892828*N*C*L*H, GFR indicates the glomerular filtration rate, a is a coefficient related to sex, L indicates the concentration of creatinine, L indicates the concentration of chlorine ions, and H indicates the concentration of