title: A primer on predictive models.
abstract: Prediction research is becoming increasing popular; however, the differences between traditional explanatory research and prediction research are often poorly understood, resulting in a wide variation in the methodologic quality of prediction research. This primer describes the basic methods for conducting prediction research in gastroenterology and highlights differences between traditional explanatory research and predictive research.
authors.affiliation: 1] Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA [2] Veterans Affairs Center for Clinical Management Research, Ann Arbor, Michigan, USA.
authors.forename: Akbar K
authors.initials: AK
authors.lastname: Waljee
authors.affiliation: Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.
authors.forename: Peter D R
authors.initials: PD
authors.lastname: Higgins
authors.affiliation: 1] Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas, USA [2] Department of Clinical Sciences, University of Texas Southwestern, Dallas, Texas, USA.
authors.forename: Amit G
authors.initials: AG
authors.lastname: Singal