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Comparison between splines and fractional polynomials for multivariable model building with continuous covariates: a simulation study with continuous response
In observational studies, many continuous or categorical covariates may be related to an outcome. Various splineābased procedures or the multivariable fractional polynomial (MFP) procedure can be used to identify important variables and functional forms for continuous covariates. This is the main aim of an explanatory model, as opposed to a ā¦