{{Rsnum
|rsid=11683503
|Chromosome=2
|Orientation=plus
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|position=78971042
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 1.8 | 9.7 | 88.5
| HCB | 3.6 | 24.1 | 72.3
| JPT | 1.8 | 8.9 | 89.3
| YRI | 21.8 | 49.7 | 28.6
| ASW | 12.3 | 43.9 | 43.9
| CHB | 3.6 | 24.1 | 72.3
| CHD | 0.9 | 28.4 | 70.6
| GIH | 5.0 | 34.7 | 60.4
| LWK | 21.8 | 41.8 | 36.4
| MEX | 0.0 | 22.4 | 77.6
| MKK | 16.0 | 45.5 | 38.5
| TSI | 2.0 | 17.6 | 80.4
| HapMapRevision=28
}}{{PMID Auto GWAS
  |PMID=24152035
  |Trait=Contrast sensitivity
  |Title=Variants in the 1q21 risk region are associated with a visual endophenotype of autism and schizophrenia.
  |RiskAllele=
  |Pval=1E-7
  |OR=4.41
  |ORtxt=[NR] unit increase
  }}

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