{{Rsnum
|rsid=2725236
|Chromosome=4
|position=87997954
|Orientation=minus
|GMAF=0.4376
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 18.6 | 61.1 | 20.4
| HCB | 12.5 | 43.4 | 44.1
| JPT | 11.5 | 51.3 | 37.2
| YRI | 21.9 | 56.2 | 21.9
| ASW | 28.1 | 49.1 | 22.8
| CHB | 12.5 | 43.4 | 44.1
| CHD | 7.4 | 45.4 | 47.2
| GIH | 28.7 | 51.5 | 19.8
| LWK | 16.5 | 51.4 | 32.1
| MEX | 12.3 | 61.4 | 26.3
| MKK | 11.5 | 41.7 | 46.8
| TSI | 30.4 | 45.1 | 24.5
| HapMapRevision=28
}}{{PMID Auto GWAS
|PMID=21490707
|Trait=None
|Title=Genome-wide meta-analysis identifies regions on 7p21 (AHR) and 15q24 (CYP1A2) as determinants of habitual caffeine consumption.
|RiskAllele=A
|Pval=0.000005
|OR=0.0650
|ORtxt=[0.04-0.10] mg/day decrease
|OA=1
}}

{{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}}