{{Rsnum
|rsid=1559931
|Gene=ICOS
|Chromosome=2
|position=203961006
|Orientation=plus
|GMAF=0.2617
|Gene_s=ICOS
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 6.2 | 38.1 | 55.8
| HCB | 1.5 | 23.4 | 75.2
| JPT | 3.5 | 28.3 | 68.1
| YRI | 15.6 | 47.6 | 36.7
| ASW | 10.5 | 43.9 | 45.6
| CHB | 1.5 | 23.4 | 75.2
| CHD | 4.6 | 29.4 | 66.1
| GIH | 15.8 | 42.6 | 41.6
| LWK | 28.2 | 44.5 | 27.3
| MEX | 3.4 | 36.2 | 60.3
| MKK | 17.3 | 54.5 | 28.2
| TSI | 5.0 | 32.7 | 62.4
| HapMapRevision=28
}}{{PMID Auto
|PMID=22977635
|Title=Association study between polymorphisms of CD28, CTLA4 and ICOS and non-segmental vitiligo in a Korean population
|OA=1
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | FTDNA}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}