Consort Diagram. Of the 1,818 DHS participants of African ancestry, n=1,532 had follow-up CV data, n=1,364 had CMR imaging data, and n=1,205 had both. Abbreviations are DHS-1, Dallas Heart Study Phase 1; WES, whole exome sequencing; CMR, cardiac magnetic resonance imaging; ECG, electrocardiogram; and DHS-2, Dallas Heart Study Phase 2.