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Stands on its own.
Nothing else here links to this position yet — but the page above is the point: what the
research found, what each genotype means, and where it came from, in language you can
read. Links to conditions, drugs and the senses appear automatically if we write them.
Strength of the evidence
1 / 4
Its strongest genetic-study result is p = 10−13, with 7 associations in the GWAS Catalog.
How this is scored
4: ClinVar disease-causing, reviewed by an expert panel or a guideline (3–4 stars). 3: ClinVar, several labs agreeing (2 stars), or a genetic study at p ≤ 10−50. 2: ClinVar from one lab (1 star), or p ≤ 10−20. 1: ClinVar submitted without criteria (0 stars), or genome-wide significance (p ≤ 5×10−8). The higher of the two counts. It says how solid the evidence is, not whether it matters for a particular person.
What the study found
Who was studied 6,333 European ancestry cases, 15,056 European ancestry controls; replicated in 15,694 European ancestry cases, 14,026 European ancestry controls, 414 European ancestry trios.
The effect
Each copy of the C allele carried 1.18 times the odds of Crohn's disease (95% confidence interval 1.13-1.23); p = 1 × 10−13.
How common The C allele had a frequency of about 35% in the people studied.
Where it sits Chromosome 9, band 9p24.1 — between genes, 2.8 kb from JAK2.
How common each version is
AC
By ancestry gnomAD
East Asian
A 63.9% · C 36.2%
European (non-Finnish)
A 65.3% · C 34.7%
African / African American
A 82.9% · C 17.2%
South Asian
A 58.3% · C 41.6%
Admixed American (Latino)
A 60.4% · C 39.6%
Middle Eastern
A 61.3% · C 38.7%
Finnish
A 63.9% · C 36.2%
Ashkenazi Jewish
A 63.0% · C 37.0%
The share of all copies of this position that are each version. The ancestry rows are gnomAD's own groups (via Ensembl), as the survey defines them, not races.
What each result means
A/ANo copy of the version the research linked to Crohn's disease. This is the starting point the study compared everyone against.
A/COne copy of the version the research linked to Crohn's disease. That is a smaller link than two copies.
C/CTwo copies of the version the research linked to Crohn's disease. That is the strongest link of the three results. A link in a study is not a diagnosis.
DNA databases also record a third, rare version at this position, carried on fewer than one in a hundred copies of the DNA. The three results above cover the two common versions only.
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Quoting this page
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