{{Rsnum
|rsid=8102683
|Chromosome=19
|position=40857860
|Orientation=plus
|GMAF=0.2167
|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 | 59.8 | 35.7 | 4.5
| HCB | 54.5 | 36.4 | 9.1
| JPT | 90.0 | 5.0 | 5.0
| YRI | 55.1 | 36.7 | 8.2
| ASW | 67.9 | 23.2 | 8.9
| CHB | 54.5 | 36.4 | 9.1
| CHD | 61.7 | 26.2 | 12.1
| GIH | 45.0 | 41.0 | 14.0
| LWK | 60.7 | 33.6 | 5.6
| MEX | 71.9 | 28.1 | 0.0
| MKK | 51.3 | 37.5 | 11.2
| TSI | 56.9 | 36.3 | 6.9
| HapMapRevision=28
}}
{{PMID Auto GWAS
  |PMID=23049750
  |Trait=Smoking behavior
  |Title=Haplotypes with copy number and single nucleotide polymorphisms in CYP2A6 locus are associated with smoking quantity in a Japanese population.
  |RiskAllele=
  |Pval=4E-42
  |OR=2.76
  |ORtxt=[2.36-3.16] unit increase
  |OA=1
}}

{{PMID Auto
|PMID=19247474
|Title=Genome-wide and candidate gene association study of cigarette smoking behaviors.
|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}}