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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.
What the study found
Who was studied 521 African ancestry cases, 20,635 African ancestry controls, 513 Admixed American ancestry cases, 10,035 Admixed American ancestry controls, 1,675 East Asian ancestry cases, 174,935 East Asian ancestry controls, 27 Middle Eastern ancestry cases, 249 Middle Eastern ancestry controls, 654 South Asian ancestry cases, 9,325 South Asian ancestry controls, 44,908 European ancestry cases, 820,112 European ancestry controls, 112 Admixed ancestry cases, 2,653 Admixed ancestry controls, 284 cases, 6,190 controls.
The effect
Each copy of the T allele shifted the measure 0.106 log odds ratio higher (95% confidence interval 0.072-0.14); p = 8 × 10−10.
Where it sits Chromosome 6, band 6p21.32 — between genes, 4.4 kb from HLA-DQA1.
What each result means
C/CNo copy of the version the research linked to Hashimoto thyroiditis. This is the starting point the study compared everyone against.
C/TOne copy of the version the research linked to Hashimoto thyroiditis. That is a smaller link than two copies.
T/TTwo copies of the version the research linked to Hashimoto thyroiditis. That is the strongest link of the three results. A link in a study is not a diagnosis.
Nature genetics · 2026 · PMID 42527560 · open access
Questions about rs28418633
What is rs28418633?
rs28418633 is a single position in the genome, in or near the near HLA-DQA1 gene. Published research associates it with hashimoto thyroiditis. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
Does having rs28418633 mean I will get this?
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
Where does the information about rs28418633 come from?
GWAS Catalog, Nature genetics 2026, PMID:42527560. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
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