Convergent evidence from colocalisation between AD, AF and eQTLs prioritised two genetic regions that each included a single candidate causal variant (rs11786896 which was an eQTL for PLEC and rs7529220 which was an eQTL for C1QA, C1QB, and C1QC) shared between AD and AF. Here, C1QA is linked to atrial fibrillation.