Overestimated Polygenic Prediction due to Overlapping Subjects in Genetic Datasets
David K. Park, Mingshen Chen, Seungsoo Kim, Yoonjung Yoonie Joo, Rebekah K. Loving, Hyoung Seop Kim, Jiook Cha, Shinjae Yoo, Jong Hun Kim
This paper shows that polygenic risk scores (PRS) overestimate predictive accuracy when datasets have overlapping subjects, using Alzheimer's disease and other traits as examples.
bioRxiv · Jan 19, 2022 · PreprintGenomics