Genetic variants associated with paroxysmal atrial fibrillation in the Japanese population

Paroxysmal atrial fibrillation (PAF) is often asymptomatic, making early-stage diagnosis difficult using routine clinical examinations alone. The genetic factors underlying PAF and the predictive utility of polygenic risk scores (PRSs) for PAF in Asian populations remain insufficiently understood. In this study, we aim to explore genetic variants associated with PAF in a Japanese cohort and to evaluate the predictive performance of PAF-specific PRSs. We analyze Japanese participants genotyped with the Illumina Infinium Asian Screening Array and perform a genome-wide association study (GWAS) after sample and variant quality control and genotype imputation based on the GRCh37 reference genome. Using the GWAS results, we construct multiple PRS models and assess their predictive ability both alone and in combination with clinical risk factors. These efforts are intended to provide a basis for personalized prevention and early detection strategies for PAF in the Japanese population.

• Type: GWAS
• Archiver: Japanese Genotype-phenotype Archive (JGA)