Exposure accumulation drives age-dependent disease architectures and polygenic risk scores
Xilin Jiang, Alkes L. Price, John Danesh, Gil McVean, Michael Inouye, Sarah Urbut, Arun Durvasula
The paper shows that environmental variance increases with age, reducing heritability and PRS accuracy for multiple traits and diseases, suggesting younger cohorts are better for risk prediction models.
medRxiv · Aug 29, 2025 · PreprintGenetic & Genomic Medicine