Novel and independent SNPs associated with QT at two previously identified QT loci in n = 8,644 African American participants.

aRestricted to SNPs with minor allele frequency ≥0.01 that passed quality control and defined as locus-specific SNP with the lowest P-value.bCoded allele listed first.cCalculated in the Atherosclerosis Risk in Communities Study.dCalculated in the Malmö Diet and Cancer Study.eAdjusted for rs12061601.Est, estimate. SE, standard error. SNP, single nucleotide polymorphism.