{{Rsnum
|rsid=3814896
|Gene=TFF2
|Chromosome=21
|position=42351602
|Orientation=plus
|GMAF=0.1469
|Gene_s=TFF2
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 61.9 | 36.3 | 1.8
| HCB | 76.5 | 23.5 | 0.0
| JPT | 73.5 | 23.0 | 3.5
| YRI | 98.0 | 2.0 | 0.0
| ASW | 75.4 | 24.6 | 0.0
| CHB | 76.5 | 23.5 | 0.0
| CHD | 72.2 | 25.0 | 2.8
| GIH | 56.4 | 36.6 | 6.9
| LWK | 96.4 | 3.6 | 0.0
| MEX | 86.0 | 12.3 | 1.8
| MKK | 92.9 | 7.1 | 0.0
| TSI | 67.6 | 27.5 | 4.9
| HapMapRevision=28
}}{{PMID Auto
|PMID=23933418
|Title=Promoter polymorphisms in trefoil factor 2 and trefoil factor 3 genes and susceptibility to gastric cancer and atrophic gastritis among Chinese population
}}

{{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}}