{{Rsnum
|rsid=3778872
|Gene=KCNH2
|Chromosome=7
|position=150972888
|Orientation=minus
|GMAF=0.236
|Gene_s=KCNH2
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;G)
| geno3=(G;G)
| CEU | 4.6 | 23.1 | 72.3
| HCB | 11.1 | 33.3 | 55.6
| JPT | 11.1 | 35.6 | 53.3
| YRI | 13.1 | 41.0 | 45.9
| ASW | 0.0 | 0.0 | 0.0
| CHB | 11.1 | 33.3 | 55.6
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}{{PMID Auto GWAS
  |PMID=23166209
  |Trait=QT interval
  |Title=Impact of Ancestry and Common Genetic Variants on QT Interval in African Americans.
  |RiskAllele=C
  |Pval=3E-6
  |OR=1.77
  |ORtxt=[1.04-2.50] unit decrease
  |OA=1
}}