A descriptive review of variable selection methods in four epidemiologic journals: there is still room for improvement
Published 14 June 2019 A review of epidemiological papers conducted in 2009 concluded that several studies employed variable selection methods susceptible to introduce bias and yield inadequate inferences. Many new confounder selection methods have been developed since then. The goal of the study was to provide an updated descriptive portrait of which variable selection methods are used by epidemi