Standard

Endometriosis

CCDC26 · rs7828227

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 = 10⁻⁸, with 1 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 2,481 African ancestry cases, 54,671 African ancestry controls, 1,752 Admixed American ancestry cases, 37,871 Admixed American ancestry controls, 2,044 East Asian ancestry cases, 87,723 East Asian ancestry controls, 99,407 European ancestry cases, 1,093,534 European ancestry controls, 185 Central/South Asian or Middle Eastern ancestry cases, 8,932 Central/South Asian or Middle Eastern ancestry controls.

The effect Each copy of the T allele shifted the measure 0.0113 higher (95% confidence interval 0.0075-0.015); p = 5 × 10⁻⁹.

How common The T allele had a frequency of about 61% in the people studied.

Where it sits Chromosome 8, band 8q24.21 — in an intron of CCDC26.

How common each version is

CT

Korean KRGDB

C 13.4% · T 86.7%

Korean Korea4K

C 12.5% · T 87.5%

Korean Korea1K

C 12.2% · T 87.8%

Japanese ToMMo

C 11.4% · T 88.6%

World gnomAD

C 20.7% · T 79.3%

World 1000 Genomes

C 23.0% · T 77.0%

World TOPMed

C 22.2% · T 77.8%

The share of all copies of this position that are each version. Source: the population studies published in dbSNP (US NCBI); each row names its study.

What each result means

C/C No copy of the version the research linked to Endometriosis. This is the starting point the study compared everyone against.

C/T One copy of the version the research linked to Endometriosis. That is a smaller link than two copies.

T/T Two copies of the version the research linked to Endometriosis. That is the strongest link of the three results. A link in a study is not a diagnosis.

Source

Multi-ancestry genome-wide association and integrated multi-omics analyses of endometriosis and its clinical manifestations

Koller D, He J, Løkhammer S, Aranda S, Qiu D, Davtian D, Chen Q, Xu Z, Mao Z, Friligkou E, Karaca S, Cormand B

and 5 more — show all

Flores I, Altmäe S, Mitjans M, Cabrera-Mendoza B, Polimanti R

Nature genetics · 2026 · PMID 42056605

Quoting this page

Licensed CC BY-NC 4.0: free to read, share and adapt for non-commercial use, naming MyGeneLog™ and linking the exact page. Commercial use, including training or serving a commercial AI system, needs a licence — https://www.mygenelog.com/license

Endometriosis (rs7828227). MyGeneLog™. https://www.mygenelog.com/variants/rs7828227

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