Hybrid models were found to be very elegant to disentangle longitudinal within- and between-subject relationships

Objectives The interpretation of a regression coefficient obtained from a longitudinal data analysis is a combination of a within-subject part and a between-subject part. The hybrid model is used to disentangle the two components. The purpose of this article was to illustrate and discuss the use of the hybrid model in epidemiologic studies. Study Design and Setting In the hybrid model the between-subject part of the relationship is obtained...