{{Rsnum
|rsid=7861820
|Chromosome=9
|position=106174393
|Orientation=plus
|GMAF=0.3365
|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 | 20.4 | 46.0 | 33.6
| HCB | 58.4 | 35.0 | 6.6
| JPT | 60.2 | 33.6 | 6.2
| YRI | 100.0 | 0.0 | 0.0
| ASW | 73.7 | 26.3 | 0.0
| CHB | 58.4 | 35.0 | 6.6
| CHD | 58.7 | 37.6 | 3.7
| GIH | 22.8 | 52.5 | 24.8
| LWK | 98.2 | 1.8 | 0.0
| MEX | 24.1 | 48.3 | 27.6
| MKK | 87.2 | 12.2 | 0.6
| TSI | 26.5 | 53.9 | 19.6
| HapMapRevision=28
}}
[http://blog.23andme.com/2009/05/18/snpwatch-researchers-link-common-genetic-variations-to-those-changes-a-womans-body-goes-through/ 23andMe blog] [[rs7861820]](C) about five weeks earlier [[menarche]].

{{PMID Auto GWAS
|PMID=19448621
|Trait=Menarche and menopause (age at onset)
|Title=Genome-wide association studies identify loci associated with age at menarche and age at natural menopause
|RiskAllele=C
|Pval=3E-9
|OR=0.09
|ORtxt=[0.06-0.12] years younger
|OA=1
}}

{{omim
|id=612883
|rsnum=7861820
}}

{{GET Evidence
|impact=pathogenic
|qualified_impact=Insufficiently evaluated pathogenic
|inheritance=unknown
|quality_scores=Array
|dbsnp_id=rs7861820
|overall_frequency_n=86
|overall_frequency_d=128
|overall_frequency=0.671875
|n_genomes=47
|n_genomes_annotated=0
|n_haplomes=76
|n_articles=0
|n_articles_annotated=0
|in_gwas=Y
|autoscore=1
|webscore=N
}}

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