Fig. 1: Flowchart of genetic data processing.

PRS processing was performed in two steps. The first step contained standardised quality check for genetic data and SNP selection. Specific criteria are summarised in the figure and detailed in the Methods. The outputs from the first step were then used for the second step of generating PRS for each individual cohort. All PRS created are summarised in the figure and detailed in the Methods. QC quality check, MAF minor allele frequency, PRS polygenic risk score, PRS-CT PRS created using clumping and thresholding method, PRS-SBayesR PRS created using SBayesR.