Aladyn Individual: Bayesian Hierarchical Dynamic Genetic Modeling of Comorbidity Progression

medRxiv [Preprint]. 2024 Sep 30:2024.09.29.24314557. doi: 10.1101/2024.09.29.24314557.

Abstract

Early identification of high-risk individuals through the analysis of their unique disease trajectories has a strong potential to support efficient prevention and clinical management across a range of chronic conditions. In this paper we present a novel approach for dynamic modeling of the evolution of chronic disease risks over time, incorporating individual genetic predispositions. Our approach uses a hierarchical Bayesian topic model including Gaussian Processes to capture age effects. It accounts for genetic predisposition through a time-warping function and topic-dependent genetic scores, enabling both simultaneous learning and updated predictions of complex comorbidity patterns, inclusive of genomic and non-genomic effects. We systematically compare to previous approaches and provide detailed simulations at https://bookdown.org/sarahmurbut/dynamic_ehr/ and https://surbut.shinyapps.io/dynamic_ehr.

Keywords: Bayesian Inference; Disease Progression; Gaussian Processes; Genetic Modeling; Precision Medicine.

Publication types

  • Preprint