{{Rsnum
|rsid=491340
|Chromosome=2
|position=238413498
|Orientation=plus
|GMAF=0.2466
|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 | 52.3 | 40.0 | 7.7
| HCB | 60.0 | 33.3 | 6.7
| JPT | 38.6 | 54.5 | 6.8
| YRI | 95.2 | 4.8 | 0.0
| ASW | 0.0 | 0.0 | 0.0
| CHB | 60.0 | 33.3 | 6.7
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}{{PMID|20497782}} PERIOD2 variants are associated with abdominal obesity, psycho-behavioral factors, and attrition in the dietary treatment of obesity.